LOS ANGELES (AFP) - Me And Earl And The Dying Girl, a moving drama about a teenager who befriends a classmate with cancer, won the top prize at the Sundance Film Festival on Saturday.

The United States documentary award meanwhile went to The Wolfpack, while in the non-US categories the main prizes went to a Scottish film-maker and a movie about Ukraine's ongoing struggle in the shadow of its former Soviet masters.

Sundance winners regularly go on to critical and awards success at Hollywood's main prize-giving ceremonies. Last year's top winner, Whiplash, is nominated for Best Picture at this year's Oscars.

Me And Earl And The Dying Girl by Alfonso Gomez-Rejon took the Grand Jury Prize for a US drama at the end of a two-hour awards ceremony in the Utah mountain resort Park City.

The best director for a US drama was Robert Eggers for his horror movie The Witch. Among US documentaries, The Wolfpack by Crystal Moselle took the Grand Jury Prize, while best director went to Matthew Heineman for Cartel Land, about drug wars in Mexico.

In the world cinema categories, the Grand Jury Prize for a drama went to Slow West by Scottish film-maker John Maclean, which follows a teenager on a journey across 19th century frontier America in search of the woman he loves.

The world documentary Grand Jury Prize was given to The Russian Woodpecker, which takes a stab at Russian President Vladimir Putin, in a story about the revolution in Ukraine and the 1986 Chernobyl nuclear disaster.

The 2015 Sundance Film Festival opened on Jan 22 and officially ends on Sunday.