Don Johnson has joined the cast of the new Adam Sandler penned/produced comedy Born To Be A Star. Johnson will reportedly play a porn director in the film, which is about a man who finds out his parents used to be big name porn stars before he was born. Already cast are Stephen Dorff, Christina Ricci and up and coming comedian Nick Swardson, who has been a pal of Sandler's for many years and co-wrote the script with him. Johnson has been off the radar as of late, but we're sure he'll have no problem amping up the sleaze for this role. He was highly amusing in Tin Cup in fairness - as a sleazy golfer.