GBF (aka Gay Best Friend) has unveiled its new trailer exclusively through Digital Spy.

The upcoming high school movie stars Michael J Willett and Paul Iacono as gay best friends Tanner and Brent at North Gateway High.

preview for GBF trailer

While Brent wants to capture the spotlight by coming out, Tanner wants to remain under the radar. However, Tanner is outed instead of Brent, becoming the must-have teen accessory of GBF, and losing his friendship with Brent.

Pretty Little Liars actress Sasha Pieterse stars as mean girl Fawcett, who battles it out against Shley (Andrea Bowen) and Caprice (Xosha Roquemore) to claim their own GBF.

Megan Mullally, JoJo, Natasha Lyonne and Harry Potter's Evanna Lynch also star in the comedy.

GBF is released via Peccadillo Pictures on March 21 in cinemas and on demand followed by a DVD & Blu-ray release on April 7.