Wisdom starred in a series of low-budget comedies produced by the
Rank Organisation, beginning with
Trouble in Store (1953). The film earned him a
BAFTA Award for Most Promising Newcomer to Film in 1954, and became the second most popular film at the British box office that year. Exhibitors also ranked him as the tenth biggest box-office star in Britain in 1954. His cheerful, unpretentious screen persona—lighthearted and physical—made his films natural successors to those of
George Formby a generation earlier. While never critically acclaimed, Wisdom's comedies were hugely popular with domestic audiences and represented some of Britain’s most successful box-office draws of the era. They even found unexpected success in overseas markets, helping to financially sustain Rank at a time when its costlier productions faltered. Most of these films featured his well-known Gump character—usually named Norman—who found himself in various manual jobs, frequently incompetent and always subordinate to a straight man, typically portrayed by
Edward Chapman (as Mr Grimsdale) or
Jerry Desmonde. The films highlighted Wisdom’s flair for physical
slapstick comedy and his ability to evoke sympathy through the character’s naïveté and helplessness. Romantic subplots were a regular feature, often revolving around the Gump’s awkwardness with women, echoing the innocence found in Formby’s earlier roles. Wisdom’s second starring film,
One Good Turn (1955), ranked as the seventh most popular British film of that year. He also appeared in ''
As Long as They're Happy (1955), followed by a return to leading roles in Man of the Moment'' (1955), which further cemented his popularity—he was named the sixth most popular British film star of 1955. His subsequent films saw him in a variety of jobs: a window cleaner in
Up in the World (1956), and a jewellery store worker in
Just My Luck (1957). Although these titles saw a dip in box-office returns,
The Square Peg (1959), an army-themed comedy, reversed the trend, becoming one of the top-grossing films of the year and finishing seventh at the British box office. By contrast,
Follow a Star (1959) was less successful. Seeking to break from the Rank formula,
There Was a Crooked Man (1960) marked an attempt to rebrand Wisdom’s screen image, though
The Bulldog Breed (1960) saw a return to more familiar territory. A young
Michael Caine co-starred in the latter and later recounted that he did not enjoy working with Wisdom, saying he "wasn't very nice to support-part actors". Nevertheless, Wisdom retained his position as the tenth most popular star at the British box office. Departing again from the typical format, Wisdom starred in
The Girl on the Boat (1961), based on a novel by
P. G. Wodehouse. He returned to more familiar comedic roles in
On the Beat (1962), where he played a car cleaner, and in
A Stitch in Time (1963), as an apprentice butcher. His first colour film,
The Early Bird (1965), cast him as a milkman. This was followed by a cameo in
The Sandwich Man (1966) and a starring role in
Press for Time (1966), his final film in the series of Rank Organisation comedies. Despite this being the end of that era, Wisdom was still voted the fifth most popular star at the British box office.
Filmk wrote his film career was "a remarkable achievement for Rank". In addition to acting, Wisdom's stage performances often included musical numbers, although he composed only a handful himself. He is credited with seven songs in the
ASCAP database: "Beware", "Don't Laugh at Me ('cause I'm a Fool)", "Falling in Love", "Follow a Star", "I Love You", "Please Opportunity", and "Up in the World". == Later career ==