Sean Penn feared he'd set his children up for "humiliation" when he cast them in 'Flag Day'.
The 64-year-old actor-and-director - who has Dylan, 34, and Hopper, 31, from his marriage to Robin Wright - got caught up in excitement when he brought the pair in to feature in his 2021 thriller and it was only later he began to experience a wave of parental anxiety about the move, so he appreciated a huge sense of "relief" when they turned in "great" performances.