Nat is a baker with a failing business. His customer base is slowly dwindling, owing to simple mortality, and his sons have no particular interest in taking over the bakery; furthermore, a hostile businessman develops his own greed-motivated plan to grab the property. What's a tired, cornered, old-school baker to do? Ayyash to the rescue. Ayyash is a refugee from Darfur whom Nat hired to help with the daily chores; the new guy also happens to peddle weed on the side. One day Ayyash accidentally drops his stash in the dough mix, and the challah begins zooming off the shelves. Dough, which stars Jonathan Pryce as Nat, is a funny and endearing comedy about bridging the cultural and generational gap. The film was part of this year's St. Louis Jewish Film Festival, and the fest's organizers have brought it back to satisfy audience demand. Dough screens at 7 p.m. tonight at the Landmark Plaza Frontenac Cinema (1701 South Lindbergh Boulevard, Frontenac; 314-994-3733 or www.stljewishfilmfestival.org). Tickets are $12.