Ok I’ll start. In The Dark Knight, the bank robbery scene to the start the movie, when the bank manager asks, “What do you believe in!” The Joker replies, “I believe, whatever doesn’t kill you simply makes you stranger.” The Joker immediately transitions to singing “People are strange when you're a stranger” by The Doors, while he glides and does chassé steps across the marble floor.

People Are Strange by The Doors

People are strange when you're a stranger
Faces look ugly when you're alone
Women seem wicked when you're unwanted
Streets are uneven when you're down

When you're strange
Faces come out of the rain
When you're strange
No one remembers your name
When you're strange
When you're strange
When you're strange