Development The film was a passion project of director
William Friedkin who called it "the first film I really wanted to make, understood and felt passionate about". He had first seen the play in San Francisco in 1962, and managed to gain funding for the film version from
Edgar Scherick at Palomar Pictures, in part because it could be made relatively cheaply. Scherick saw Friedkin's first feature
Good Times and felt it "quite good, unusual." The producer admired star Robert Shaw calling him "my great love. If ever a man could love another, I love Robert Shaw. It was one of Palomar's first films. Shortly after the film version was announced a production of the play appeared on Broadway where it had a short run. Pinter wrote the screenplay himself and was heavily involved in casting. "To this day I don't think our cast could have been improved," wrote Friedkin later. The original choice for the part of Goldberg was Zero Mostel but he was not available.
Shooting There was a ten-day rehearsal period and the shoot went smoothly. Friedkin says the only tense exchange he had with Pinter in a year of working together came when
Joseph Losey saw the movie and requested through Pinter that Friedkin cut out a mirror shot as it was too close to Losey's style; Friedkin refused as "I wasn't about to destroy the film's continuity to mollify Losey's ego".
Max Rosenberg, best known for his horror movies for
Amicus Productions, had been called in by Palomar as line producer. "I thought
The Birthday Party was going to make me a millionaire," said Friedkin. "People were going to be standing in line." "It was a different world then to what it is now," Scherick said in 1990. "There seemed a broader range of acceptance then. Certainly I expected to make money or else we wouldn't have commissioned the picture." ==Reception==