Other mistake: At the end, when Peter saves Mary Jane from the collapsing structure, he jumps up in the air and swings her to safety. However if you look at the web he is holding onto it is hanging down vertically. What did he attach the web to that was directly above him, the sky? Every bit of the structure around him was/had collapsed and the only thing remotely close to swing from was the cranes. Yet we see that was quite a distance away, so Peter would have had to shoot the web away from himself not above him. (01:47:50)
Continuity mistake: When the girls are knocking on the "Wilson sisters" (the Copeland brothers in disguise) hotel door for the slumber party, the girl in the middle is holding a stack of magazines, and "Cosmopolitan" is on top. When one of the "sisters" opens the door, the magazine on top is now "Self". (00:48:40)
Continuity mistake: When Bill is cutting the crusts off a sandwich towards the end, he cuts two off, goes to remove the third, then the angle changes and he's now cutting it in half. After that we hear him sweep the crusts off the board and see him hand the sandwich to BB, then a shot or two later crusts are back on the board and he cleans them off again to make another sandwich. (01:29:05)
Continuity mistake: Starsky and Hutch are both called in to the boss' office after robbing a bookie and destroying a Cadillac's roof. When Hutch walks into the office, the top drawer on the right side on the boss is closed. But when the shot changes to the boss when he starts talking to Hutch, the drawer is open. (00:05:20)
Continuity mistake: In the scene where Washburn and the other undercover cop are attempting to buy calling cards from the Cubans, Washburn asks for the guy hiding in the other room to come out. The guy does come out, and he leaves the door open to the room he was just in. The next few shots go back and forth between Washburn and the head Cuban guy facing the two other Cubans. Each time they show these two guys, the door behind them is open. After they all stop laughing, they show the guys again, and the door is closed. In the next shot, the head Cuban guy yells that Washburn is a cop, and runs through the now open again door.
Other mistake: This mistake occurs in the scene where Ryan (Chris Evans) has just stolen the lawyer's car and is pulling into a tunnel. When Jessica (Kim Basinger) speaks, the English subtitles read "You can't loose me", instead of the grammatically correct "You can't lose me." This also happened earlier in the police stairwell. (00:39:55)
Continuity mistake: When Creasy kills the first Judicial Policeman, the scene where he cuts the guys fingers off and then shoots him in the head, he pushes the car down a hill. The first angle is from Creasy's view, and the hill is all dirt. It then cuts to a second angle from the air, the hill is now all grass. When the car hits the school playground, it looks like it fell from the sky, with no hill around. (01:22:15)
Revealing mistake: In the train scene if you look closely at Vincent's ear as he steps off the train ready to shoot Max and Annie, it looks like he has an earpiece or some kind of small blood pack in his ear. (01:44:05)
Continuity mistake: When Patience Phillips wakes up after robbing the jewelry shop, her hand goes up to her bed and there are a bunch of jewels. She has a ring on that hand, however, as she gets a bag and puts everything in it, the ring is gone. She then finds that ring mixed in with everything, and tries it on the left and then right hand, where it stays. In the next scene as she keeps putting stuff into the bag and then finds the necklace, when she holds it up, her hands are visible... guess what? NO RING.