This is also the tag-line from the 1993
Joel Schumacher movie, "
Falling Down", starring
Michael Douglas.
In the climax, when Predergast (
Robert Duvall) faces down William Foster/D-Fens on the pier, and explains everything to him, you suddenly see the realization dawn on William's face. With a mixture of hurt confusion and righteous indignantion, he asks...
"
I'm the Bad Guy?"
It may not be one of the most famous lines in the movies, but as far as tag-lines go, it is probably one of the deepest.