Petaluma has been and still is the quiet hometown that you see in a lot of movies.  Movies like Peggy Sue Got Married, Howard the Duck, Heros, Tucker, and the most famous one, American Graffiti.   Filmed 35 years ago, downtown Petaluma still looks just like it did in the movie American Graffiti.  If this interests you and you want to find out more, go to Americangraffiti.net  and look at the filming location map.  Thanks and have fun, but watch out for the cop in "Jerries Cherries".