infrequent strong language
8 uses of "Fuck" (including one mouthed, and two hard-to-hear uses), 7 uses of "Bastard", 4 uses of "Piss", some uses of "Shit" and "Balls", alongside frequent British profanities like "bugger", "bloody", "sod", "bollocks" and "arse".
The uses of "Fuck" are the sole reason for the film's R-rating. However, in the UK the BBFC relaxed their rules on the word being used infrequently during the time of its release so it only got a 12/12A.