Sylvester Stallone Warns Other Actors Not to Do Own Stunts After Surgeries

Sylvester Stallone says he doesn't advise actors to do their own stunts in the movie biz ... and 7 surgeries oughta serve as a warning -- you listening, Tom Cruise??? The legendary action star made the revelation in a recent episode of his Paramount reality show, "The Family Stallone," where he said he'd undergone more than half a dozen back surgeries to deal with an injury he suffered on the set of "The…