Deliberate mistake: After Emily talks to inspector Girotti she starts a record player. Then she walks over to the window, sees Werner in the garden, and decides to go down. Between shots she appears behind him, which is wrong, as the song from the record goes on, but it's most probably intended. (00:30:45)
Continuity mistake: When Tom plays checkers with Bill and makes his last, winning move, there's a cut to a wide angle where the pieces on the board are arranged differently. (00:08:20)
Revealing mistake: When Frank yells stop to Marion, you can see the marks on the road from a previous take. (01:05:20)
Continuity mistake: When the Batwoman is fleeing at the very beginning of the movie, she is shot at by her pursuers from below. The shot, represented by a yellow streak, is then seen coming from above before it strikes the vehicle she is on.
Character mistake: The letter from the FBI containing the results of the blood and semen test is filled with numerous typos. First, on the line "Subject: Result of examination requested", the word "examination" is misspelled "examnation." Second, the term "DNA instrumental analyses" has "instrumental" incorrectly spelled as "insrumental." Third, the line "Reference: Letter dated October 21, 1987", has the word "dated" misspelled as "dateed" and the month "October" misspelled as "Octorber." (01:58:35)