The hour-long Pinball plays with Natasha Schull's 30-minute ode to gluttony, Buffet: All You Can Eat Las Vegas. Drawn in by such gimmicks as the $2.99 shrimp cocktail, self-proclaimed buffet connoisseurs arrange incredible and unlikely food combinations on enormous plates; casino employees, used to dealing with gob-smacking amounts of consumption, ponder how a horseshoe-shaped restaurant really allows for "more flow." Meanwhile, Sin City pigs grunt on a farm outside town, eagerly awaiting the leftovers. After all, as the farmer's wife points out, humans and pigs have nearly identical digestive tracts. SFBG

SAN FRANCISCO DOCUMENTARY FILM FESTIVAL

Fri/12–May 21

Roxie Film Center

3117 16th St., SF

$10

www.sfindie.com

Also Women's Building

3543 18th St., SF