Cooper Raiff's Hal and Harper leans into the image of adults playing children by having lead Lili Reinhart smoke in scenes where her character is 9 years old. In Us Weekly's exclusive clip from the Sunday, October 26, episode of the MUBI series, Hal (Raiff) confides in Harper (Reinhart) about struggling in first grade, saying, "I'm having trouble making friends." Harper, who is smoking out the window, tries to comfort her younger brother. "First grade is very isolating," she notes. "Remember how you're more mature than the other kids.