MAUDE APATOW, the eldest daughter of writer-director-producer Judd Apatow and actress Leslie Mann, got an early taste of the indignities of showbiz. As a grade-schooler, she shot small roles for Kicking and Screaming, Talladega Nights, and The 40-Year-Old Virgin, only to see herself sliced out of all three. By the time it happened on the last of those films, she was fed up. “I’m sick and tired,” she told her dad at age eight, “of just being in the DVD extras!”
Maude more than earned her screen time at age 14, on 2012’s This Is 40, throwing hilariously authentic adolescent tantrums, fighting convincingly with her real-life younger sister, Iris, and nailing her first tearful monologue. (“What I think was so great about Maude is she really could get in…