Audio problem: In the scene where Leo explains how he launders the drug money and Roger says "You're a cheat", Leo says "Come on, everyone cheats a little, look at the pentagon." But when he says "look at the pentagon", it's dubbed in because the sound of his voice doesn't match his other dialogue, and if you read his lips it doesn't match either.
Audio problem: In the shoot out scene in the stilt house, Riggs is running up the stairs and falls - he has his Beretta in his hand, finger off the trigger, but you can hear it fire three shots. No one else is around or shooting at him, since the bad guys are on the run.
Chosen answer: 'Mandrake the Magician' was a comic strip that was popular (at least in Australia) in the 1970s. It featured the title character that was able to perform very elaborate magic tricks (including disappearing acts).
david barlow