The Dark Knight
Heath Ledger used method acting to properly train for his role in The Dark Knight. While he didn’t invent a line, he actually invented something else. Like when he responds to Commissioner Gordon’s promotion. That slow, sarcastic clap was all his own doing. Iconic.
Guardians Of the Galaxy
Chris Pratt is a comedic genius and everyone knows it. While he was on the hilarious series Parks and Recreation, he did a bit of improve. So it’s really not surprising to know that he created a hilarious scene in Guardians of the Galaxy. The director asked the actor to issue an apology in the scene. Instead, Pratt used a hysterical and obscene gesture which was even featured in the trailer! Oh, Star-Lord, you wicked beaut.