Nowhere Boy (2009)

"Mate," A teenage John Lennon tells his friend Pete Best at the end of this bio-pic. "We're going to be famous. We're going to be rich. And we're going to do it TOGETHER."

Thereupon, John "borrows" twenty pounds from the drummer (which later researchers discover was never repaid) and drives off in his friend's car (which most later researchers record was returned with an almost empty gas tank.)

You know, I like irony too but sometimes you can heap it on too thickly (and cruelly as well.)