One of Our Dinosaurs Is Missing

Peter Ustinov - Hnup Wan
Helen Hayes - Hettie
Clive Revill - Quon
Derek Nimmo - Lord Edward Southmere
Joan Sims - Emily
Bernard Bresslaw - Fan Choy
Natasha Pyne - Susan
Roy Kinnear - Supt. Grubbs
Joss Ackland - B.J. Spence
Deryck Guyler - Harris

Wacky Disney yarn about a group of British nannies, featuring slapstick comedy and over the top acting the film tries too hard to be funny. Set in the 1920s, British Lord Southmere (Derek Nimmo) smuggles secret microfilm "Lotus X" out of China and into England. Once back in England, Chinese agents trying to recover the formula kidnap him. Lord Southmere escapes into the Natural History Museum and hides the top-secret microfilm in the skeleton of a dinosaur on display.

After a brief reunion in the museum with his old nanny Hettie (Helen Hayes) and her friend Emily (Joan Sims), Lord Southmore enlists their help in the search for the formula before losing consciousness. Hattie’s spirited fellow nannies get involved and lead Hnup Wan (Peter Ustinov), to the right dinosaur. The calamitous attempts by secret agents and spies to get their hands on the stolen microfilm is further complicated when Wan sends his men to steal the dinosaur. The nannies steal it from the Orientals. After several more disasters and a the race through foggy London, the hunt is finally resolved after a kung-fu fight between all involved.