Shocking but genuine, poignant and hilarious, “Diary of a Teenage Girl” could well become one of the more memorable entries in the Sundance Film Festival’s U.S. competition. And again. Since The Diary of a Teenage Girl does involve drug use, of course the film hits a more dour note in the third act, but it earns the expected downfall. The Diary of a Teenage Girl is a 2015 American comedy-drama film written and directed by Marielle Heller, based on the hybrid novel of the same name by Phoebe Gloeckner. There is no richer American movie at Sundance this year. We so look forward to presenting the film to audiences all over the world in a big way," said the company in a statement. It's a seriously contemplative and revealing drama about a young woman lost and confused about her sexual identity upon committing one of society's most serious taboos and realizing that she liked it and might want to try it again. Sundance: Diary of a Teenage Girl Steers Clear of Scolding or Moralizing. The Diary of a Teenage Girl est un film réalisé par Marielle Heller avec Bel Powley, Alexander Skarsgård. And enough times to keep an audio diary of her thoughts and … Directed by Ron Sylvester. Heller shows how drugs ultimately hurt this young girl, but she also conveys how they open Minnie’s eyes and influence her … It stars Bel Powley as a 15-year-old girl who becomes sexually active by starting a relationship with her mother's boyfriend. "The Diary of a Teenage Girl" is a film that shouldn't be as uncommon as it is for American cinema. With Marielle Heller, Bel Powley, Keith Simanton, Alexander Skarsgård. Our interview with the cast of "Diary of a Teenage Girl" conducted on location in Park City, Utah from the IMDB and AIV Studio at Sundance 2015. By Bilge Ebiri “I had sex today.