One of Our Dinosaurs Is Missing (1975)

Escaping from China with a microfilm of the formula for the mysterious "Lotus X", Lord Southmere, a Queen's Messenger, is chased by a group of Chinese spies.

Genres: Action, Adventure, Comedy, Drama, Family, Mystery, Thriller

Stars: Derek Nimmo, Hugh Burden, Bernard Bresslaw, Helen Hayes, Joan Sims