Visible crew/equipment: When Gort picks up Patricia Neal next to the flying saucer, you can see cables leading down to her body to keep her hoisted. (01:20:15)
Continuity mistake: Once Rose has put up the Union Jack flag, Charlie tells her "You'll wait for me on the East shore." The sentence is across two shots, the second part remarkably pronounced with a big cigar between Mr. Bogart's lips. It just was not there before. (01:31:15)