Issa López, who wrote and directs, projects that for these kids, things that go bump in the night may be seen as by adults as just superstitions, but for these kids they are as real. They include shadows, ghosts, the dead whispering their demands for vengeance. A line of blood follows Estrella as she and her male pals plan on dealing with members of the cartel including El Chino (Tenoch Huerta), whose cell phone with damning evidence of murder has fallen into the hands of the children and which the drug lord seeks– not that the cops are interested in doing anything with the evidence as Estella and company find out.

The film is described as horror, at most it could be called supernatural, with visions that are not overdone by López, whose “Efectos secondarios” about four young adults adrift in Mexico City shows her versatility. Good performances aside, “Tigers are Not Afraid” is filled with dull and repetitive commentary by the street kids and lacks the kind of variety that would substantially fill even its brief running time.

Feel free to call this movie an example of Guillermo del Toro light, considering that del Toro is best known for “Pan’s Labyrinth” (n the Falangist Spain of 1944, the bookish young stepdaughter of a sadistic army officer escapes into a captivating but eerie fantasy world). Perhaps “Tigers are Not Afraid” does not succeed because the actors, talented and however skillful, are ten-year-olds with a limited grasp of the situation but more likely it is because the actions in this Shutter release come across like a work-in-progress.

Since the principal characters are all young orphans whose parents have presumably been rubbed out by drug lords during the war that began in Mexico in 2006, we can accept the ease by which these kids fill their time with fantasies about killers on the loose. The teacher assigns the writing of fairy tales, stories which for ten-year-old Estrella (Paola Lara) star tigers because tigers are not afraid. She and her classmates have good reason to be afraid when shots are fired down the hall, the children and teacher hitting the floor.