Davy

Davy is a 1958 British comedy-drama film directed by Michael Relph and starring Harry Secombe, Alexander Knox and Ron Randell. It was written by WIlliam Rose. It was the last comedy to be made by Ealing Studios and was the first British film in Technirama. Davy was intended to launch the solo career of Harry Secombe, who was already a popular British radio personality on The Goon Show, but it was only moderately successful.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.