Clerks
-Jedi politics.
hilarious

i really like
.
aother good one is
, also by jarmusch. iggy pop is great, he's so confused there haha

one classic scene is the scene with al pacino's and robert de niros' characters have a cup of coffee in michael mann's 'heat' is great. can't find a youtube link for that one now though.
there's a(n urban legend) that the two actors never actually were sitting across each other by the same table but their parts were shot differently, using a double on the opposite side of the table.
don't know if that's true though.