Continuity mistake: In the final sword fight between Rathbone and Jackie, you can see Rathbone's swords flex along the edge more like rubber than a steel sword.
Continuity mistake: When Roy and John are talking about getting Lin out of prison, there is a shot of her looking definitely to her right, the shot then goes behind her and we see that both Roy and John are on her left.
Continuity mistake: In the market place fight scene, Jackie Chan uses an umbrella to defend himself. In one shot, he breaks the umbrella edge, bending it out of shape. In the next shot, it looks brand new.
Continuity mistake: When Chon and Roy are talking in the bar, Roy has a shot and puts the glass on the table with other glasses. A few shots later the glasses has changed positions. (01:04:25)
Continuity mistake: During the fight with the street gang, Jackie Chan is about to jump onto the cloth roof to send a gang member flying away. Watch the first half of the shot (from behind Chan) and the cloth in the section Chan is about to jump into is hanging down in the space between the joists and is very slack. When the shot changes from the front to show Chan jumping and landing into the cloth, the cloth is now stretched tight for his landing.
Continuity mistake: The position of Jackie Chan's sword in the gears of Big-Ben changes between the shots we see. It goes from being almost fully in, to about half in.
Continuity mistake: During the library and museum scenes particularly, the heights of candles and the amount of light given off by them varies significantly from shot to shot. This is because Jackie Chan fight scenes tend to be filmed over a matter of weeks.
Continuity mistake: In the scene when we see the young Charlie Chaplin for the first time, his face is very dirty and has smudges on it. Later in the same scene his face becomes cleaner and cleaner.
Continuity mistake: Lin's ankles are shown tied with neat loops of ropes and no link between them. A couple of shots later her ankles are sloppily tied and tied together. (01:12:38 - 01:13:26)
Continuity mistake: In the scene where Jackie Chan's sidekick is dressed up near the middle of the movie, his collar is messed up in one shot and perfect the next.
Continuity mistake: When Chon Wang is spinning the wheel back and forth causing Roy to be dunked into the water again and again, in one shot, the timing of Wang turning the wheel doesn't match up with Roy actually dunking into the water. It is the shot where it happens several times, timed to match the music in the background.
Continuity mistake: During the fight in the outdoor market, Jackie Chan flips a table over with the ridged side facing upwards. In the next shot the ridged side is facing down.
Continuity mistake: When Roy plunges into the water, there should be pieces of rope around the bottom of the pulley device he is hanging from, but there is none.
Continuity mistake: In the beginning, Lin Wang goes from holding the puzzle box in one shot to holding her father's hand in another shot.
Continuity mistake: In the final fight, we see Rathbone flip his sword at one point so he is holding it "properly", but in the previous cut he was already holding it in the right way. This is because much of the fight was cut in editing, and several pieces of sword fighting were taken out.
Continuity mistake: When Owen Wilson is climbing the minute-hand of Big-Ben, his legs change position between a few shots.
Continuity mistake: If you look closely during the fight scene in the library, the guy that Jackie Chan traps in the ladder is not the same person from the moment he gets trapped to the moment he gets knocked out. (00:50:45)
Continuity mistake: When John is trying to lift Roy out of the water it seems to take a full rotation of the turnstile to raise him up a foot above the water, but when John is fighting with the guard he moves the turnstile back and forth about 2-3 feet each way and you see Roy dipping in the water and raising out about a foot above the water then back in and out of the water.
Continuity mistake: During the climatic fight scene between Jackie and the baddie in the Clock Tower, the background was the inner side of the clock. There was silhouette of the clock's hand without Owen on it when Jackie was dueling the villain on the platform. However, when Jackie and the villain crashed through the same clock face, Owen was hanging on the clock's hand. (01:33:30)
Continuity mistake: At the end of the library fight scene, a guard is trapped in a rung on a ladder, leant backwards against the bookcase (so the guard is "on his back", head facing the books). Between shots, the amount of his body trapped in the rung changes, going from his shoulders, to most of his arms. It keeps changing between shots.
Answer: The song is "My Generation" performed by The Who.
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