What does it take for actors to land iconic roles? A noteworthy audition. Here, some of the best cold readings we’ve seen:

• Romantic Comedy: The camera can’t get enough of Audrey Hepburn when she tries out for the role of princess Ann in Roman Holiday.

• Sci-Fi Flick: Harrison Ford seals the deal after reading for the part of Han Solo in Star Wars.

• Comedy: Jimmy Fallon impersonates Jerry Seinfeld, John Travolta and Adam Sandler in his Saturday Night Live audition. He even introduces some original characters and gets the casting directors chuckling.

• Drama: Child actor Henry Thomas nails his audition to play Elliot in E.T. Listen to Spielberg’s praise after he finishes the scene!