Kathleen Francis of Clearlake and her dog Princess Abby, 2010 winner of the World's Ugliest Dog Contest.

“Worst in Show,” an hour-long documentary by two local filmmakers about the annual, wildly popular “World’s Ugliest Dog Contest” in Petaluma, will be shown four times at Boulevard Cinemas in Petaluma this month.

Show times are 7 p.m. Saturday (Nov. 5), Tuesday (Nov. 8 ) and Thursday (Nov. 10), with a matinee at 4 p.m. Sunday (Nov. 6.)

“Worst in Show,” made by Don Lewis of Petaluma and John Beck of Benicia, follows the rivalry between the 2009 winner, Pabst, a boxer mutt with a serious underbite, and Rascal, the 2002 champ, leading up to the summer 2010 contest at the Sonoma Marin Fair.

Beck and Lewis previously collaborated on “Stringers,” a 10-minute documentary that follows video freelancers in San Francisco as they document crime scenes and sell the footage to TV stations. The film won the audience award for best documentary short at the 2006 Austin Film Festival.

Beck, a staff writer at The Press Democrat from 1998 to 2009, writes freelance articles about entertainment.