Star Wars: Episode V – The Empire Strikes Back (1980)
The Improvisation: Han Solo is about to get frozen in carbonite by the evil Darth Vader. Seizing her moment, Princess Leia finally confesses her feelings for the rogue, telling him: “I love you.” Solo’s iconic reply: “I know.”
What Was In The Script: “I love you, too,” was Han’s schmaltzy scripted response. Needless to say that what Ford came up with trumps it completely – even if George Lucas initially hated it.