Continuity mistake: Lieutenant Bowers questions the survivor of the first encounter with the alien, suspecting he might have just clobbered a love rival. The telephone rings; after it happens, the sheet in front of the suspect does a 180°. (00:09:35)
Phantom from Space (1953)
1 mistake
Lt. Bowers: I don't care what ya say, but it doesn't make sense to me. Anybody trained in sabotage would stay undercover. This guy's walking around in a monkey suit - killing people.