Without trying I've spotted several Scientologists on TV and in movies in just the last week.
It started with an old episode of Stargate SG-1 (what a superb show) starring Corin Nemec as "Jonas Quinn" then came the movie Flightplan co-starring Erika Christensen (an edge of your seat thriller starring the brilliant Jody Foster), followed by an episode of Law & Order: Criminal Intent, guest starring Elizabeth Moss and another Law and Order: CI guest starring Geoffrey Lewis. Then to top it all off Elizabeth Moss was featured in Entertainment Weekly in her role as "Peggy Olsen" in the award winning series Mad Men.
All that in just the last week and I don't even watch a lot of TV and movies.
A culture is only as great as its dreams, and its dreams are dreamed by artists. — Scientology founder L. Ron Hubbard