"Where's my dinner...? Where's my dinner?!?", Pleasantville (insert anything in place of "dinner")
(tongue waggle) "Bitch. Lesbian.", Scarface
"Yessir, Captain Tightpants!" and "Big Damn Heroes" (insert anything in the space of "heroes"), Firefly, technically a TV show, I know...
"Inconceivable!" and "No more rhymes now, I mean it!...", The Princess Bride
Also not a film, but Mr Crumpet and I will often get into quoting the lines from the song Tiger Woods by Dan Bern when we're being ridiculous...