Unknowns
Desconocidos: The Unknown (original)
A group of young unknown actors arrive in Hollywood with dreams of fame and fortune. When they are cast in a horror film they become the unsuspecting participants in a snuff film - theirs.
Starring Gabriel Porras, Sonya Smith, Francisco Gattorno, Romina
Watch "Unknowns" from streaming services Tubi TV, Amazon released in 2012. It's a horror and thriller movie, and has a rating of 6.2 out of 10 from Imdb which is usually fine for this kind of movie.