Question: Ross Shor Lynch, is an American singer, songwriter, and actor, he is also starring in a new horror/thriller movie called "My Friend Dahmer," a 2017, an American biographical drama film, written and directed by who?

Context paragraphs:
The Glass Castle (film): The Glass Castle is a 2017 American biographical drama film directed by Destin Daniel Cretton and written by Cretton, Andrew Lanham, and Marti Noxon, based on Jeannette Walls's 2005 memoir of the same name.  Depicting Walls's real-life childhood spent squatting in homes and living in poverty, the film stars Brie Larson as Walls with Naomi Watts, Woody Harrelson, Max Greenfield, and Sarah Snook in supporting roles.  The film was released on August 11, 2017, by Lionsgate and received mixed reviews from critics, who praised the performances of its cast (particularly Larson and Harrelson) but criticized the mishandled tones and material.

Ross Lynch: Ross Shor Lynch (born December 29, 1995) is an American singer, songwriter, and actor.  He is one of the founding members of the pop rock band R5.  As an actor, he is known for his debut role as Austin Moon on the Disney Channel original series "Austin & Ally", and for his role as Brady in the "Teen Beach Movie" series.  Lynch is also starring in a new horror/thriller movie called "My Friend Dahmer," where he plays the role of Jeffrey Dahmer in his teenage years.  The movie is set to debut in the fall of 2017.

Lady Sings the Blues (film): Lady Sings the Blues is a 1972 American biographical drama film directed by Sidney J. Furie about jazz singer Billie Holiday, loosely based on her 1956 autobiography which, in turn, took its title from one of Holiday's most popular songs.  It was produced by Motown Productions for Paramount Pictures.  Diana Ross portrayed Holiday, alongside a cast including Billy Dee Williams, Richard Pryor, James T. Callahan, and Scatman Crothers.

Crown Heights (film): Crown Heights is a 2017 American biographical drama film written and directed by Matt Ruskin.  Adapted from a "This American Life" podcast, the film tells the true story of Colin Warner who was wrongfully convicted of murder, and how his best friend Carl King devoted his life to proving Colin's innocence.  The film stars Keith Stanfield as Collin Warner and Nnamdi Asomugha as Carl King.

To Write Love on Her Arms (film): To Write Love on Her Arms (also known as Day One; formerly Renee) is a 2012 American biographical drama film written and directed by Nathan Frankowski, starring Kat Dennings, Chad Michael Murray, Rupert Friend, Juliana Harkavy, Corbin Bleu and Mark Saul.  The film is based on the life of troubled teenager Renee Yohe and the founding of To Write Love on Her Arms by Jamie Tworkowski, after he and others helped Yohe to overcome her challenges enough to be able to enter rehab.  The film premiered on March 11, 2012 at the Omaha Film Festival, and was eventually released Direct-to-DVD on March 3, 2015.

My Friend Dahmer (film): My Friend Dahmer is a 2017 American biographical drama film written and directed by Marc Meyers about the American serial killer Jeffrey Dahmer.  It is based on the 2012 graphic novel of the same name by cartoonist John "Derf" Backderf, who had been friends with Dahmer in high school in the 1970s, soon before Dahmer began his killing spree.  The film stars Ross Lynch, Alex Wolff, Dallas Roberts, and Anne Heche.

I Am Michael: I Am Michael is a 2015 American biographical drama film written and directed by Justin Kelly.  Based on Benoit Denizet-Lewis' "New York Times Magazine" article "My Ex-Gay Friend", the film stars James Franco, Zachary Quinto, Emma Roberts, and Charlie Carver.  Franco plays Michael Glatze, a gay activist who renounces homosexuality and becomes a Christian pastor.  Filming ran in New York City from August 11 to August 30, 2014.

Dahmer (film): Dahmer is a 2002 American biographical horror film directed by David Jacobson and starring Jeremy Renner and Bruce Davison.  Renner plays American serial killer Jeffrey Dahmer, a mentally-unstable recluse in Wisconsin who kidnaps, rapes, and murders multiple men.

The Founder: The Founder is a 2016 American biographical drama film directed by John Lee Hancock and written by Robert Siegel.  The film stars Michael Keaton as businessman Ray Kroc, and portrays the story of his creation of the McDonald's fast food chain.  Nick Offerman and John Carroll Lynch co-star as McDonald's founders Richard and Maurice McDonald.

Marshall (film): Marshall is a 2017 American biographical drama film directed by Reginald Hudlin and written by Michael and Jacob Koskoff starring Chadwick Boseman as the first African-American Supreme Court Justice Thurgood Marshall and one of the first cases of his early career.  It also stars Josh Gad, Kate Hudson, Dan Stevens, Sterling K. Brown and James Cromwell.

Supporting paragraphs: Ross Lynch My Friend Dahmer (film)
Answer: Marc Meyers