Plot hole: The alien-possessed Mason steals Captain Lauritzen's fingerprints by pressing his fingertips to the captain's and "heat transferring" the prints. Big problems here: those prints would now be backwards and for the wrong hand. But when the computer later reads the prints, it fails to notice this and passes him through security as "Identity Correct." (00:23:30)
UFO (1970)
1 plot hole - chronological order
Starring: Ed Bishop, Michael Billington, Ayshea Brough, Dolores Mantez
Genres: Sci-fi
Continuity mistake: A UFO crash lands in Canada and sits amidst trees in a wooded area. Just before the craft explodes, the only snow visible is on mountains in the distant background. After it explodes, however, the ground and trees all around it are suddenly covered with snow. (00:36:30)
Col. Paul Foster: What about our evidence? They've got to take notice of that.
Ed Straker: Evidence. What's it going to look like when Henderson claims that we manufactured it, just to get a space clearance program?
Col. Paul Foster: But we are right.
Ed Straker: Sometimes, Colonel, that's not quite enough.