After being caught having sex with her school’s prom queen, a girl is forced into a gay conversion therapy centre.

Based on Emily Danforth’s acclaimed and controversial coming-of-age novel, this stars Chloë Grace Moretz (as Cameron Post), and American Honey breakout star, Sasha Lane.

The film beat out critically-lauded dramas such as Blindspotting and Monster to win the Sundance Film Festival’s grand jury prize.

“We want to dedicate this award to the LGBTQ survivors of sexual conversion therapy,” Moretz said in her acceptance speech.

“We want this movie to shine a light on the fact that it is only illegal in nine states out of the 50 to practice sexual conversion therapy.”

The movie was directed by Desiree Akhavan who said she read the book in 2012 and loved it and her girlfriend at the time told here she had to adapt it into a film.

The film brings awareness to the prevalence of gay conversion therapy in North America.

Jennifer Ehle, who plays Dr. Lydia Marsh who is a therapist who feels like she’s doing good, said: “I think a bi-product of a really wonderful story is I think that a lot of people are unaware that gay conversion therapy exists and there are only 5 states that have outlawed it.”

Chloë Grace Moretz who takes the lead as Cameron Post said that LGBTQ was always at the forfront of her mind having grown up with two gay brothers.

She also talked about the importance of this movie in the current political climate, “the most important thing we could be doing right now than giving a voice and giving something to the cause that is tangible.”

Moretz told AFP: “The (Trump) administration actually completely believes in conversion therapy.

“Mike Pence tried to get it state-funded when he was Senator, so it is a very real problem,”.

The film has not been picked up for distribution, and there’s no confirmed release date.