There are loads of obvious ones I like from Aliens, The Terminator, The Thing, An American Werewolf, etc, but I was watching Control last night and was reminded of a few that I really like from that:
"I'd never stand for that"
"Being called something like 'the Buzzcocks'"
"What are you on about?"
"I don't know. I don't mind the Buzz, but calling themselves C0cks... I don't get it"
"They're not calling themselves the C0cks, are they? They're calling themselves the Buzzcocks"
"Still got the word 'c0ck' in it"
and later on:
"Now remember, we are live, so no swearing or they will cut you off."
"What about 'ar$e'"
"Is 'ar$e' a swear word?"
"'Ar$e', yes. It's a swear word"
"No, it's not"
"Bernard, out there I know 'ar$e' isn't a swear word. Here in TV land, 'ar$e' is most definitely a swear word. Trust me, I know all about swearing and TV. I'm a master of knowing when I can and when I can't."
"What about 'big dog's c0ck'? Can you say that?"