Audio problem: After the boat race when one of the Winklevoss twins (hard to distinguish which one) says "Let's gut the fricking nerd", you can see him mouth "fucking nerd." "Fricking" also sounds extremely dubbed in.
Audio problem: During the girls' follow-up discussion after Tracy has sex with Ravi, Evie laughs and says, "What? We didn't go over that one." However, her lips aren't moving when she speaks the second sentence; the second part was obviously dubbed in later.
Audio problem: When Reggie threatens the man outside his club, Reggie's boyfriend runs at him shouting "You stupid bastard..." and he is restrained by the gang. His lips never actually say these words.
Audio problem: When Oppenheimer confronts Nichols in his office after finding out Lomanitz got drafted, there is a shot focusing on Nichols where Oppenheimer says, "Don't be an asshole, Nichols," where his mouth doesn't move along with the line. (01:13:08)
Audio problem: When the train pulls away after being decoupled it really sounds like a steam train, not a diesel electric. (00:59:30)
Audio problem: At the end of the film when Joseph reveals himself to his brothers, he says "I am your brother, Joseph." However, if you look at his lip movements, you'll see that he does not say "Joseph."
Audio problem: When the SEALs in the Chinooks take fire, a helicopter crew member fires their weapons. The weapon is a M240 7.62mm Machine Gun, but the audio of it firing is that of an M134 Minigun.