Lili Reinhart and Cooper Raiff's Sibling Codependency in "Hal & Harper"
Writer/director/editor/executive producer Cooper Raiff (Cha Cha Real Smooth) wears many hats on his family dramedy "Hal & Harper." He also plays the titular Hal opposite "Riverdale's" Lili Reinhart as Harper, the siblings at the center of the 8-episode series that features Mark Ruffalo as their hard-luck dad. At The IMDb Studio in the Acura House of Energy during the 2025 Sundance Film Festival, Raiff, Reinhart, and cast members Alyah Channelle Scott, Addison Timlin, Havana Rose Liu, and Christopher Meyer discuss their on-set experiences and how they felt about getting acting notes from a scene partner.