31. In "Star Wars ANH," Harrison and Luke Skywalker make their way into a detention center to rescue Princess Leia. When an Imperial officer demands via intercom to know what caused all the commotion, Harrison leans over and replies,
"Uh . . . had a slight weapons malfunction. But, uh, everything's perfectly all right now. We're fine. We're all fine here, now, thank you. How are you? Boring Conversation anyway"
Harrison made this up on the spot, deliberately not learning the scripted lines so as to sound spontaneous.