I've done films where you have to get in shape for purely vanity reasons, when you read a script, turn to page 87 and it says: "Rips his shirt off and casually throws it onto chair" - and you're going to go to the gym the next day because nobody wants to see your big fat arse out there taking your shirt off!
Bruce WillisAll actors have to make the words fit in their mouths, and make the words the words fit to how you say it and how you make it life-like and make it look like what you're saying is just conversation that you're just thinking off the top of your head. That process is not quite improvisation.
Bruce Willis