Bo Burnham’s leap from YouTube to cinema took another step at Sundance 2020 with his performance in “Promising Young Woman.” But for the “Eighth Grade” director, playing the male lead in Emerald Fennell’s provocative thriller about sexism and harassment led to a lot of nerves.

“Holding a coffee cup and just looking like I’m from planet Earth was enough of a challenge,” Burnham joked to TheWrap’s Beatrice Verhoeven. “Just the simple act of business and sort of integrating it, and meanwhile I’m holding a french fry and wondering, ‘Do I look like I even have human DNA at this point?'”

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