By Esther Zuckerman
Updated August 27, 2014 at 01:54 PM EDT

Though Rooney Mara and Martin Sheen are the big names in Stephen Daldry’s Trash, a new trailer highlights Eduardo Luis, Gabriel Weinstein, and Rickson Tevez. All three are making their screen debuts in the film, playing the three boys who are led on an adventure after finding important items in the landfill where they work.

Though Andy Mulligan’s novel on which the movie was based wasn’t set in a particular location, Daldry (whose other tale of youth, Billy Elliot, is being touted in the trailer) filmed Trash in Rio, and, per Variety, the movie is 80 percent in Portuguese and 20 percent in English. Richard Curtis, who is best known for his romantic comedies, wrote the screenplay.

Mulligan’s novel generated controversy it was removed from the shortlist for the U.K.’s Blue Peter award, which honors children’s literature, in 2010 for containing “scenes of violence and swearing that are not suitable.” The Guardian called it a “riveting, emotional read that doesn’t pull its punches.”