Peter Bogdanovich is Jewish.
Peter Bogdanovich is a Vegan (i.e., an adherent of Veganism; source: NEXP). As yet, we are uncertain whether Veganism functions as a religion for Peter Bogdanovich, or whether it is simply a lifestyle choice. Veganism is a religion centered around vegetarianism and alternative beliefs about animals, but this belief system/lifestyle choice does not function as a religion for all Vegans.
From: Gary Strauss, "Stars unleash their passion", published in USA Today, 4 July 2005 (http://www.usatoday.com/life/people/2005-07-04-celebs-religion_x.htm; viewed 21 November 2005):
What happens when a Hollywood star spouts off about religion?
If it's ultimate A-lister Tom Cruise, who has been outspoken about his Scientology beliefs while promoting War of the Worlds, the fallout -- at least at the box office -- appears negligible...
"Usually people don't proselytize," says director Peter Bogdanovich, who helmed The Last Picture Show and Paper Moon. "It's rare that entertainers stick their neck out, because politics and religion are things people get touchy about. And besides, it's a pretty personal thing, religion, so people stay out of it."