Err, not that I'm saying that I'VE seen it ("Party at Kitty and Studs"- Sly's screen debut), just that it would be about as believable as a 60 year old boxer retaining his credibility...oh, nevermind...
PS- well, yes I got curious, and googled the topic to find out that the world's
oldest active heterosexual male porn star was 65 in 2005- if the guy (a certain "Dave Cummings"*-nyuk nyuk, star of such "greats" as "Ol' Dirty Bastards and the Girls who Love 'Em" and "Slammin' Granny In the Fanny") is STILL going, he'll be 67 this year so...
*those who would like to find out more about Mr Cummings (apparently a "dead ringer" for the late Enron Exec, Ken Lay) should look here-
http://en.wikipedia.org/wiki/Dave_Cummings_(Adult_Film_Actor)