The filmmaker Noah Baumbach can recall when he may have fallen out of love with his craft. He was shooting “White Noise,” based on Don DeLillo’s novel, “on a deserted highway in Ohio at 4 A.M. with a rain machine.” “Oh, God, I don’t know that I like doing this,” he recalls thinking. “Am I doing this”—making movies—“only because I do it?” He channelled that angst into his new film “Jay Kelly,” a Hollywood comedy of manners starring George Clooney as a very famous movie star who suddenly wonders whether it was all worth it, and why people keep offering him cheesecake. In October, Baumbach spoke with The New Yorker’s articles editor, Susan Morrison, at The New Yorker Festival about working with his wife, Greta Gerwig, on “Barbie,” and why the first lines of his movies can tell you everything.

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