Deliberate mistake: Jimmy catches a fly in the air and puts it in his mouth. He then spits it out with great power. You then hear a "Bzzzzz." assuredly made by the fly. How can a fly flap its wings when spit out in that velocity? (00:48:30)
The Whole Nine Yards (2000)
1 deliberate mistake - chronological order
Directed by: Jonathan Lynn
Starring: Bruce Willis, Kevin Pollak, Amanda Peet, Michael Clarke Duncan, Natasha Henstridge, Matthew Perry, Rosanna Arquette
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)
Jimmy "The Tulip" Tudeski: I'm gonna keep the coke and the fries but I'm gonna send this burger back. And if you put any mayonnaise on it, I'm gonna come over to your house, I'll chop your legs off, set fire to your house, and watch as you drag your bloody stumps out the door.
Trivia: During their walk, when Jimmy and Oz stop by a flower stall, the three girls who run between them shouting "I'm gonna kill you." are Bruce Willis' 3 daughters. (00:12:45)