Continuity mistake: When Nick is having lunch with Jill (the assistant) the waitress takes his menu twice. Once while the camera is on Nick and once while the camera is on the waitress. The hand she's holding the menu in also changes from left to right. (00:06:05)
Continuity mistake: When Nick and Jill are eating at the outdoor cafe the bottle of Pepsi turns around from shot to shot. When the camera focuses on Nick, you can read the whole word "Pepsi" but when it's on Jill you can still read half of the same word even though she's on the complete opposite side of the table. (00:06:10)
Continuity mistake: When Matthew Perry is having lunch with his assistant near the start, when his meal comes his glass of water switches sides of the table depending on the angle. (00:07:10)
Continuity mistake: When Oz realises that Jimmy "The Tulip" Tudeski is his neighbour, we see a few newspapers flying up on the screen, on the second newspaper the article with the title "His "Two Lips" are Sealed", the article text does not match the headline. (00:08:25)
Continuity mistake: Sometime during Matthew Perry and Bruce Willis's first meeting outside Bruce's house, Perry tells him how familiar his face is. During one of the questions, the shades Bruce hung on his shirt disappear in one shot and reappear in the next. (00:08:55)
Continuity mistake: As Jimmy & Oz drive from Oz's house to the city, the background behind Oz's side of the car changes from a new suburb in a wooded area (with a degree of unfinished construction) to a large, long-completed residential valley, and back again. (00:11:30)
Continuity mistake: When Oz and Jimmy are talking on the Royal Mount, there's a florist stall, with a panel written "fleuristerie". Some shots later, it is bigger with "floreteria" or something like that written on it. (00:13:05)
Continuity mistake: When Oz is telling Jimmy about his father in law's loan you can see a man standing beside him turning his head to the left. When it cuts to a closeup the man is looking forward. (00:13:25)
Continuity mistake: When Matthew Perry is talking to Bruce Willis after their drive and he's sitting on the ledge, when he says "no, I live here with my wife" his hands are either side of him on the ledge or together in his lap, depending on the angle. (00:13:50)
Continuity mistake: When Oz is at Gogolak's house you can see a bottle of vodka on Gogolak's table. When Oz leaves the bottle is gone and now there is a jar of water on the table that wasn't there earlier. (00:26:05 - 00:26:55)
Continuity mistake: When Mathew Perry goes to Chicago to meet with the head Boss, Bruce Willis' wife comes to talk with him at the hotel. In the scene where he is brushing his teeth he picks up the mouthwash bottle and swigs some, then sets the bottle down on the counter. The camera cuts back to her, then back to Matthew Perry, and the mouthwash is gone. (00:32:50)
Continuity mistake: When Matthew Perry is drinking with Willis' wife in the Chicago hotel room, the level in her glass changes - one minute there's not much in there, then it's half full, and then she swigs back the last drop! (00:33:50)
Continuity mistake: When Oz and Frankie gets in to the hotel room where Jimmy is waiting for them, Oz bumps into Frankie and knocks over a lamp. He gets up holding the lamp in front of him. The way he holds it changes during the shots, and the lamp shade changes position. (00:39:55)
Continuity mistake: When Bruce Willis first comes into contact with Michael Clark Duncan - in the hotel room MCD takes his sunglasses off but when he gives BW a hug they are on but when he steps back they are off again. (00:41:40)
Continuity mistake: When Oz gets to Jimmy's house, you see Jill holding a gun at chest level and Jimmy pointing a gun her direction. When it cuts, Jill holds the gun at shoulder level and Jimmy's gun is lowered. (00:53:30)
Continuity mistake: At Jimmy's house Jimmy is having a martini. He empties the glass and puts it on the table. Then in two shots later he empties it again. (00:54:00)
Continuity mistake: When Oz is back from Chicago, after taking Jill to meet Jimmy, Oz calls Jimmy's wife, and when the phone rings, a red light shines on the phone. Then on the 2nd call the light doesn't shine anymore. (00:54:05 - 00:55:00)
Continuity mistake: When Oz's wife is having sex with her new contract killer you see his necklace. Its position changes between the shots. (00:55:50)
Continuity mistake: When the bad guys get to Jimmy's house one of them tries to open the door wearing black gloves. In the next shot you see him trying to pick the door with white doctor gloves. Why did he change? (01:03:10)
Continuity mistake: In the scene where Jill distracts the contract killer nude, her hand with a gun changes position between the shots. (01:06:00)
