The famous line "Leave the gun. Take the cannoli" was improvised by actor Richard Castellano

Marlon Brando was awarded the Oscar for Best Actor for his performance in the Godfather but turned it down to protest Hollywood's treatment of Native Americans

George Lucas originally planned for Yoda to be played by a monkey wearing a mask

Han Solo's famous line "I know" in response to Leia's "I love you" was an ad lib by Harrison Form. The line in the script was "I love you, too."

According to Mark Hamill, 20th Century Fox executives were concerned that Chewbacca was naked and suggested that he wear pants

The shape of the Millennium Falcon was based on a hamburger