In their early careers, Sylvester Stallone and Jackie Chan both took part in porn.
11
Freddie Mercury held parties with midgets carrying around trays of cocaine.
8
Jon Heder was paid only $1,000 for his role in Napoleon Dynamite.
4
Heath Ledger locked himself in a hotel room for a month to prepare for his iconic role as the Joker in The Dark Knight
1
Clint Eastwood was in a plane which crashed into the sea. He and the pilot escaped the sinking aircraft and swam 3 miles to safety.
18