He was 60 when he made that movie. He is 84 now and his last movie was in 2010 when he was 73.
Clint Eastwood is 91 and still making movies. Now granted, Cry Macho (his latest flick) is getting mediocre reviews, but I still find it insane that he did a movie at 91.
Nicholson was hilarious in As Good As It Gets, but you all know this having seen it over 20 years ago. Not sure why it took me so long.