One Of Our Dinosaurs Is Missing 1975 Genres: Dinosaur Adventure, Adventure, Comedy, Family, Mystery, Thriller Country: United States, United Kingdom Director: Robert Stevenson Duration: 94 Min Year: 1975 Actors: Peter Ustinov, Helen Hayes, Derek Nimmo, Hugh Burden, Bernard Bresslaw, Joan Sims, Deryck Guyler, Clive Revill, Molly Weir, Andrew Dove, Max Harris, Max Wall, Natasha Pyne, Joss Ackland, Arthur Howard, Roy Kinnear, Leonard Trolley, Joe Ritchie Storyline: A suspected Western spy steals a secret microfilm from China and hides it in the skeleton of a museum dinosaur, prompting a frantic search for it by various interested parties.