Lord Southmere has a ring of Chinese spies chasing him because he has in his possession a secret microfilm, the contents of this microfilm reveals the formula for mysterious Lotus X. After being chased into the Natural History Museum, Southmere hides the film in the bones of a Brontosaurus skeleton. After Southmere's capture, it's up to his old nanny and her hardy band of friends to find the film and keep it from the clutches of the evil Hnup Wan.....
.....and so is the plot for Disney's charmingly silly live action venture. It's not masquerading as any... read the rest.
'One of Our Dinosaurs Is Missing' has a couple of mildly positive things about it, but it is largely a disappointment. I personally failed to get into the premise, I don't mind silly plots but I just don't feel like it connects at all.
Alongside that, you have some very lazy casting which certainly hasn't aged well whatsoever. You have a number of major characters who are Chinese, yet not a single Chinese actor can be seen - yellowface aplenty. Even taking away the obvious negatives, it's not like it even works in the film's favour either.