Corrected entry: In the scene where Reinhardt Lane is trying to defuse the bomb hanging from the ceiling he cuts a wire leaving a short piece of bare metal at each end, in the shot where he reconnects them the bare parts have grown considerably.
Corrected entry: When Lamont and Margo go to the corner of Second Ave. and Houston St., Lamont looks up and sees the Hotel Monolith begin to materialize. The top left corner of the hotel can be seen before the entire hotel itself appears to Lamont. This section of the building should not have appeared until the materialization reached the very top.
Corrected entry: When Khan and Lamont are talking to each other in the restaurant in China town, Khan gets angry and slams the phurba down on the table between Lamont's fingers. Lamont then says, "Oh that knife," as if now realising what's being talked about. Khan never mentioned anything about a knife to Lamont so how could Lamont have known that Khan had a knife with him or for that matter was even talking about one?
Corrected entry: The film is set in the 1930's, but one of the guards outside Reinhardt Lane's lab refers to ordering a pizza. Pizzas were not generally available in the US until after World War II.