The Naked Truth

The Naked Truth (U.S. title: Your Past is Showing). 1957 The Rank Organisation, distributed to DVD by MGM.
Starring: Terry-Thomas, Peter Sellers, Peggy Mount, Shirley Eaton, Dennis Price
Director: Mario Zampi
Available at Amazon.

A blackmailer named Nigel (Dennis Price) threatens to publish embarrassing secrets in his magazine, The Naked Truth. This time, he has targeted Lord Henry Mayley (Terry-Thomas), TV host Sonny MacGregor (Sellers), a writer named Flora Ransom (Mount) and model Melissa Right (Eaton).

Some of the would-be targets decide on their own that having Nigel murdered would be preferable to paying him not to expose their dirty laundry. Lord Mayley almost falls victim to MacGregor's and Ransom's schemes, but they all regroup and try again. What happens is, Nigel is arrested for an unrelated crime. At his trial, he threatens to reveal everything, so Mayley recruits the help of hundreds of other past targets in sending him to South America. The London police is overwhelmed with fake calls for help while Mayley and MacGregor (plus his assistant) break Nigel out of prison and wisk him to a waiting blimp.

Nigel is kept unconscious until everyone ends up in the blimp's cabin, and they're enroute to a rendezvous with an outgoing ship. The publisher ends up doing himself in when he steps out for some fresh air, unaware of where he really is. While celebrating, MacGregor shoots his pistol, puncturing the blimp. Whoops!

A pretty funny British comedy featuring Sellers before he became famous, Terry-Thomas, and several assorted Carry On regulars. Recommended.