Revealing mistake: When Rocky climbs the RKO tower, he carries lifeless Frank-N-Furter on his back. In the wideshots facing the stunt doubles' backs, while Rocky has both of his hands on the tower, the very much dead Frank-N-Furter has his right arm firmly around Rocky's neck to hang on.
Revealing mistake: When the shark bursts through the window of the cabin, in each of the shots facing Brody, including when he shoves the air tank into the shark's mouth, the glistening water is visible in the window's reflection behind Brody. The shark's reflection is never seen behind Brody, despite the shark's massive size in the small cabin. Bruce must have had the day off during Roy Scheider's takes. (01:58:00)
Revealing mistake: When the stripper appears from the changing room during the cabaret scene, the stripper music is heard, but if you look carefully the tape recorder which is supposed to be playing the music is not actually moving.
Revealing mistake: When King Arthur is fighting the Black Knight, when he is about to chop off his last leg we can see the Black Knight jump slightly, after he has done this we can see his leg fall before King Arthur has touched it with his sword. (00:15:25)
Revealing mistake: As Machine Gun Joe runs slowly runs over a fisherman in a small brook, he stops and "peels out" on his head. You can see a film crewman in the driver's seat doing the actual carnage.
Revealing mistake: You can see the threads moving the submarine underwater. (00:04:55)
Revealing mistake: The newspaper says that the Pink Panther was stolen on 24th January. The scenes of Gstaad, in the Swiss alps, were obviously not filmed in January. The temperature in Gstaad gets up to about 5°C/41°F in January yet people are shown wearing light clothing with bare arms. (00:53:05)
Revealing mistake: Anytime there is a fight, the hits hardly come close to making contact, but the sound effect is still there.
Revealing mistake: You can see the wires on the handgun pointed at the two extraterrestrial children when the bad guys are staring in shock at the "floating gun."
Revealing mistake: When Tommy's parents die he puts their hands together. As the camera shows the close-up of their hands his mother's pinky finger twitches.
Revealing mistake: Near the end of the movie in the shot when Giorgio Perozzi is dead on his bed you can see him breathing twice.
Revealing mistake: When Clint Eastwood is at his Sanction in Zurich, he climbs up a drain pipe, and climbs through a window, if you look behind him, you can see a rope. (00:19:40)
Revealing mistake: If you look closely at the scene where McMurphy climbs the fence and falls from the tree, Nicholson's stuntman looks nothing like him.
Revealing mistake: There are two actual games played out: one in Huston and one in Tokyo - the score board has identical faulty light bulbs in both locations.
Revealing mistake: During the chase sequence towards the end of the film, Roger shoots five bullets into the windscreen of the blue car. If you look carefully, you can see there is no driver in the front seat.
Revealing mistake: The caboose and two bunk cars are uncoupled and sent rolling down the hill, with troops locked inside. As the cars roll off a cliff, troops can be heard yelling. However, as the cars hit the ground and shatter into rubble, the wood does not appear to be blood stained, nor does there appear to be any sign of bodies in the debris. The cars were obviously empty for the scene, and given the circumstances of the soldiers allegedly trapped within them, it's unlikely that any of the soldiers could've gotten out in time.
Revealing mistake: When Hettie drives her motorbike up to the café for the first time, you can see the horse and cart in the background zoom across the frame - because of the film being sped up at that moment.
Revealing mistake: When Barry stands at his uncle's dinner table to supposedly "toast" Captain John Quinn for his pending marriage, to Barry's cousin Nora Brady (who Barry is in love with), he throws his glass in Captain Quinn's face instead. However, the glass noticeably breaks before Barry even throws it.
Revealing mistake: When the protagonist jumps two of the evil cowboys that are after his jewels, the stuntman on the right tosses aside the rifle in a quick deliberate move pretending to lose it. (00:10:25)
Revealing mistake: Establishing shots of the party where Chaney will fight Pettibon's guy; when we see the band play and people dance, the footage is rather obviously stopped and reversed to give the impression of a longer shot (evidently they had too little usable film of the crowd dancing). (00:31:00)