Some restaurant critics get ink traversing the globe. Jonathan Gold forged a more challenging route: the San Gabriel Valley hole-in-the-wall, a dull strip mall closer to home, a food truck that presaged the fad. Gold teases Angelenos’ tongues by mining culinary greatness in offbeat locales as he serves up vats of knowledge on global cuisine.

The 2015 film documentary “City of Gold,” directed by Laura Gabbert, captures the process that won Gold the Pulitzer Prize. The film screens at the UCLA Hammer Museum’s Billy Wilder Theater on Wednesday, Feb. 24, 7:30 p.m., followed by a Q&A with Gold and Gabbert.

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