^It wasn't a true ad lib, but still not in the script, though, was it?

Mark Baker was the tech advisor for The Last of the Mohicans and The Patriot. While teaching Mel Gibson to shoot flintlocks he told him "Aim small , miss small." Gibson liked it and put it in the film.

The scene in Goodfellas where Joe Pesci confront Henry around the dinner table. "What am I a clown? Am i here to amuse you?"
It was an awesome scene and all the actors went with it.

Yippie ki yay mother F**ker!

The line was supposed to be yippie ki yay a**hole. Willis changed it to mess with the editors, but couldn't believe they left it in the final cut.

Also of note: When the modeler was building the original Death Star, he left it out in the sun too long. The top and bottom parts shrank before the glue had dried, leaving a gap. Instead of making another prop, he called Lucas to see if the gap would be that big of a deal.

They decided it would be fine with the trench and then worked it in to the film, giving us action the likes of which movie goers had never seen before.

quote:

Originally posted by irreverent:
Would this include Harrison Ford using his gun instead of the sword in Raiders of the lost Ark?

One famous ad-lib by Mr. Ford: Han Solo replying, "I know" when Leia tells him she loves him.