Well if you can stand to see gay porn, this site
has an an analysis on it, including pictures comparing the two guys. Actually, people were thinking Austin was a guy named Brock on a porn site. It's NFBSK of course, if you don't want to see guys bonking other guys.
But the site covers the Laguna Beach movie rumor:
In addition, there were supposedly a couple of sites that claimed that Austin had moved on to being a gay porn star! One site claimed that the movie he was in was called "LAGUNA BEACH: A LOVE AFFAIR", and he used the porno name "Jason Cutler" (compare this to "Jason Geiger" he used as a student). It also mentioned that the back of the box to the video promotes Jason Cutler as once having played the Red Power Ranger for MMPR. These are of course unconfirmed rumours.