No sabe, no contesta(2002)

Overview:

A handful of young people deal with their personal and emotional tribulations in this teen-centric romantic comedy from Argentina. Laura (Karina Dali) is a woman who has unwittingly stolen the heart of Joaquin (Mariano Martinez), a brash film student, but while he makes plans to woo her, Joaquin has to take care of some other matters first. Joaquin is moving into a new flat, and he and his friends discover just how hard it is to move a piano; meanwhile, he also is drafted into helping his buddy Marcos (Facundo Espinosa) win back his girlfriend, which means lending Marcos his car.