Other mistake: It is night-time when Dr. Tart (Conway) releases the 2nd dove out the window. Moments later we hear 2 gunshots and a plop sound of a dead bird. Which would be impossible as the shooter could not see a gray bird in the night sky.
The Private Eyes (1980)
1 other mistake
Directed by: Lang Elliott
Starring: Don Knotts, Tim Conway, Bernard Fox, Trisha Noble
Continuity mistake: When the pair fall out of the chimney, the right, front paw of the bear rug left of shot can be seen. The shot cuts to the lined up staff, where Mr Uwatsum is seen actually standing on the same paw.
Mr. Uwatsum: How about a nice bowl of fish eyes?
Inspector Winship: Will you pardon me, please?
Mr. Uwatsum: Ah... Do you like hummingbird cookies?
Dr. Tart: ...No, thank you.