I know it's random but, just to tell the power of make up. Brando was only 47 when he shot The Godfather and thanks to his amazing work as and actor (plus cotton balls in jaws !) and the work of mua's, he looked nearly 70 !
Without makeup on the set of The Godfather. We really had a party while shooting the wedding that opens the movie. Real alcohol was being consumed. It was extraordinary. I'd use cue cards sometimes, or I'd write my lines on the cuff of my shirt or in the palm of my hand, on the desk, on another actor. My excuse for that was, well, people don't really know what they're going to say. I used the searching for my lines performance-wise.