FORMER Disney favourites Selena Gomez and Vanessa Hudgens will star in the deliberately trashy film "Spring Breakers".

The pair will star alongside James Franco in the "pop poem" film which premiered at the Venice film festival.

A concoction of deliberately trashy visuals and dream-like sequences, the film directed by Harmony Korine is bound to raise more than a few eyebrows for the pornographically-shot nudity and lesbian frolicking of its young actresses.

Screaming teen fans were out in force for the premiere, chasing Gomez - the girlfriend of pop sensation Justin Bieber - around for autographs.

"It was a dream. It was just like a fantasy," Korine told reporters.

"I wanted to make a movie with very little dialogue, more sensory, like a pop poem. Sometimes words get in the way," he said.

"It is also about a new generation. It is about a new vision. It is about kids that were raised with video games, You Tube videos. TV kids."

The plot revolves around four hedonistic girls who go to Florida for their spring break university holiday - a binge of drink, drugs and flesh.

Their fortunes take a turn for the worse when they are arrested and are bailed out by Franco's creepy gold-toothed gangster character Alien.

At this point Gomez as Faith - a name that carries weight in what at times appears a parable of an American Dream gone wrong - leaves and the three remaining members of the gang embark on a law-breaking spree with Alien.

The film builds up to a gory and garish conclusion - an inevitability that viewers are reminded of by the sound of a gun being cocked that is repeated throughout the flick as well as by bloody flash-forward scenes.

The film is one of 18 competing for the Golden Lion prize to be announced on Saturday. It is due out on general release next year.

