Development and writing began working on
Bringing Up Baby after plans to adapt
Gunga Din were delayed. In March 1937
Howard Hawks signed a contract at RKO for an adaptation of
Rudyard Kipling's
Gunga Din, which had been in pre-production since the previous fall. When RKO was unable to borrow
Clark Gable,
Spencer Tracy and
Franchot Tone from
Metro-Goldwyn-Mayer, the adaptation was delayed and Hawks began looking for a new project. In April he read a short story by
Hagar Wilde in ''Collier's
magazine called Bringing Up Baby'' and immediately wanted to make a film from it, as it had made him laugh out loud. RKO bought the screen rights in June for $1,004, and Hawks worked briefly with Wilde on the film's treatment. Wilde's short story differed significantly from the film: David and Susan are engaged, he is not a scientist and there is no dinosaur, intercostal clavicle or museum. However, Susan gets a pet panther from her brother Mark to give to their Aunt Elizabeth; David and Susan must capture the panther in the Connecticut wilderness with the help of Baby's favorite song, "I Can't Give You Anything but Love, Baby". Hawks then hired screenwriter
Dudley Nichols, best known for his work with director
John Ford, for the script. Wilde would develop the characters and comedic elements of the screenplay, while Nichols would take care of the story and structure. Hawks worked with the two writers during summer 1937, and they came up with a 202-page script. Wilde and Nichols wrote several drafts together, beginning a romantic relationship and co-authoring the
Fred Astaire and
Ginger Rogers film
Carefree a few months later. The
Bringing Up Baby script underwent several changes, and at one point there was an elaborate pie fight, inspired by
Mack Sennett films. Major Applegate had an assistant and food taster named Ali (intended to be played by
Mischa Auer), but this character was replaced with gardener Aloysius Gogarty. The final draft had several scenes in the middle of the film in which David and Susan declare their love for each other which Hawks cut during production. Nichols was instructed to write the film for Hepburn, with whom he had worked on John Ford's
Mary of Scotland (1936). Barbara Leaming alleged that Ford had an affair with Hepburn, and claims that many of the characteristics of Susan and David were based on Hepburn and Ford. Nichols was in touch with Ford during the screenwriting, and the film included such members of the
John Ford Stock Company as
Ward Bond,
Barry Fitzgerald,
D'Arcy Corrigan and associate producer
Cliff Reid. Ford was a friend of Hawks, and visited the set. The round glasses Grant wears in
Bringing Up Baby are reminiscent of
Harold Lloyd and of Ford.
Principal photography was scheduled to begin on September 1, 1937 and wrap on October 31, but was delayed for several reasons. Production had to wait until mid-September to clear the rights for "I Can't Give You Anything but Love, Baby" for $1,000. In August Hawks hired gag writers
Robert McGowan and
Gertrude Purcell for uncredited script rewrites, and McGowan added a scene inspired by the comic strip
Professor Dinglehoofer and his Dog in which a dog buries a rare dinosaur bone. RKO paid
King Features $1,000 on September 21 to use the idea.
Casting After briefly considering Hawks's cousin
Carole Lombard for the role of Susan Vance, the producers chose Katharine Hepburn to play the wealthy New Englander because of her background and similarities to the character. RKO agreed to the casting, but had reservations because of Hepburn's salary and lack of box-office success for several years. Producer Lou Lusty said, "You couldn't even break even, if a Hepburn show cost eight hundred grand." Hawks and producer
Pandro S. Berman could not agree on whom to cast in the role of David Huxley. Hawks initially wanted silent-film comedian
Harold Lloyd; Berman rejected Lloyd and
Ronald Colman, offering the role to
Robert Montgomery,
Fredric March and
Ray Milland, all of whom turned it down. Hawks' friend
Howard Hughes finally suggested Cary Grant for the role. Grant had just finished shooting his breakthrough romantic comedy
The Awful Truth (1937), and Hawks may have seen a rough cut of the unreleased film. At the time Grant had a non-exclusive, four-picture deal with RKO at $50,000 per film, but Grant's manager used his casting in
Bringing Up Baby to renegotiate his contract, earning him $75,000 plus the bonuses Hepburn was receiving. Grant was concerned about being able to play an intellectual character and took two weeks to accept the role, despite the new contract. Hawks built Grant's confidence by promising to coach him throughout the production, instructing him to watch Harold Lloyd films for inspiration. Grant often met with Howard Hughes to discuss his character, which he said helped his performance. Hawks obtained character actors
Charlie Ruggles on loan from
Paramount Pictures for Major Horace Applegate and Barry Fitzgerald on loan from
The Mary Pickford Corporation to play Aloysius Gogarty. Hawks cast Virginia Walker as Alice Swallow, David's fiancée; Walker was under contract to him and later married his brother
William Hawks. As Hawks could not find a panther that would work for the film, Baby was changed to a leopard so they could cast the trained leopard Nissa, who had worked in the industry for eight years, making several B-movies.
Filming Shooting began September 23, 1937 and was scheduled to end November 20, on a budget of $767,676. Filming began in-studio with the scenes in Susan's apartment, moving to the
Bel Air Country Club in early October for the golf-course scenes. The production had a difficult start due to Hepburn's struggles with her character and her comedic abilities. She frequently overacted, trying too hard to be funny, and Hawks asked vaudeville veteran Walter Catlett to help coach her. Catlett acted out scenes with Grant for Hepburn, showing her that he was funnier when he was serious. Hepburn understood, acted naturally and played herself for the rest of the shoot; she was so impressed by Catlett's talent and coaching ability that she insisted he play Constable Slocum. Most shooting was done at the Arthur Ranch in the San Fernando Valley, which was used as Aunt Elizabeth's estate for interior and exterior scenes. Beginning at the Arthur Ranch shoot, Grant and Hepburn often
ad-libbed their dialogue and frequently delayed production by making each other laugh. The scene where Grant frantically asks Hepburn where his bone is, was shot from 10 am until well after 4 pm because of the stars' laughing fits. After one month of shooting Hawks was seven days behind schedule. During the filming, Hawks would refer to four different versions of the script and make frequent changes to scenes and dialogue. His leisurely attitude on set and shutting down production to see a horse race contributed to the lost time. He took twelve days to shoot the Westlake jail scene instead of the scheduled five. Hawks later facetiously blamed the setbacks on his stars' laughing fits and having to work with two animal actors. The
terrier George was played by Skippy, known as Asta in
The Thin Man film series and co-starring with Grant (as Mr. Smith) in
The Awful Truth. Both the leopards in the story were played by Nissa, a trained leopard supervised by its trainer Olga Celeste, who stood by with a whip during shooting. At one point, when Hepburn spun around and caused her skirt to twirl, Nissa lunged at her and had to be subdued by Celeste cracking her whip. Nevertheless, Hepburn was unafraid of the leopard and wore heavy perfume to keep Nissa calm. Grant, however, was terrified; most scenes of the two interacting are done in close-up with a stand-in. Hepburn played upon his fear by throwing a toy leopard through the roof of Grant's dressing room during production. There were several news reports about Hawks's difficulty filming the live leopard, and the potential danger to highly valuable actors, so some scenes required
rear-screen projection. Hawks and Hepburn had a confrontation one day during shooting. While Hepburn was chatting with a crew member, Hawks yelled "Quiet!" until the only person still talking was Hepburn. When Hepburn paused and realized that everyone was looking at her, she asked what was the matter. Hawks asked her if she was finished imitating a parrot. Hepburn took Hawks aside, telling him never to talk to her like that again since she was old friends with most of the crew. When Hawks (an even older friend of the crew) asked a lighting tech whom he would rather drop a light on, Hepburn agreed to behave on set. A variation of this scene, with Grant yelling "Quiet!", was incorporated into the film. The Westlake Street set was shot at 20th Century Fox Studios. Filming was eventually completed on January 6, 1938, with the scenes outside Mr. Peabody's house. RKO producers expressed concern about the delays and expense, coming in 40 days behind schedule and $330,000 over budget, and also disliked Grant's glasses and Hepburn's hair. The final production cost was $1,096,796.23, primarily due to overtime clauses in Hawks's, Grant's and Hepburn's contracts. While cost for sets and props was only $5,000 over budget, all the actors (including Nissa and Skippy) were paid approximately double their initial salaries. Hepburn's salary rose from $72,500 to $122,000, Grant's from $75,000 to $123,000 and Hawks's from $88,000 to $203,000; Hawks would receive an additional $40,000 to terminate his RKO contract on March 21, 1938.
Post-production and previews Hawks's editor George Hively cut the film during its production, and final prints were made a few days after shooting ended. The first cut (10,150 feet long) was sent to the
Hays Office in mid-January 1938. Despite several
double entendres and sexual references the Office passed the film, overlooking Grant saying he "went gay" or Hepburn's reference to George urinating. The censor's only objections were to the scene where Hepburn's dress is torn, and references to politicians (such as
Al Smith and
Jim Farley). By February 18, the film was trimmed to 9,204 feet. As is typical for a Hawks comedy,
Bringing Up Baby is fast paced, despite being filmed primarily in long medium shots, with little cross-cutting. Hawks later told
Peter Bogdanovich, "You get more pace if you pace the actors quickly within the frame rather than cross cutting fast". The musical score is minimal, primarily consisting of Grant and Hepburn singing "I Can't Give You Anything but Love, Baby". Musical director
Roy Webb arranged an instrumental version of the song to play over the opening and closing credits, and the Ritz scene features incidental music.
Bringing Up Baby had two advance previews in January 1938, where it received either "A" or "A+" scores on audience-feedback cards. Producer Pandro S. Berman wanted to cut five more minutes, but relented when Hawks, Grant and Cliff Reid objected. At the second preview, the film received rave reviews and RKO expected a hit. ==Reception==