Cooper Raiff's 'Hal & Harper' Trailer with Lili Reinhart & Mark Ruffalo"You are safe. Hal & Harper & Dad chart the evolution of their family... From Cooper Raiff comes Hal & Harper, an 8-episode series about siblings Hal and Harper, whose lifelong closeness is both their comfort and their curse. Here's the official trailer (+ poster) for Cooper Raiff's series Hal & Harper, direct from Mubi's YouTube:Hal and Harper (Cooper Raif and Lili Reinhart), two codependent siblings living in Los Angeles, are doing their best to navigate long term relationships, friendships, and situationships. It's executive produced by Daniel Lewis, Clementine Quittner, Cooper Raiff, Lili Reinhart, Addison Timlin. Mubi will debut Raiff's Hal & Harper series streaming on Mubi starting on October 19th, 2025 coming soon this fall.