Who said it: Owen Wilson in Bottle Rocket (1996)
Argument: Over your male friend's possession of a Nick & Norah's Infinite Playlist Blu-ray (with director's commentary) and accompanying 11x17 movie poster.
At the bar you've accompanied your friend to, you and a beautiful brunette across the way are exchanging lingering looks. As you decide to make the move, you realize your friend has been rattling on about why Nick & Norah's Infinite Playlist is "not just a girl movie." You try to make sure he doesn't lapse.