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I am trying to remember the name of a film. I am nearly positive it is either a real documentary or at least a mock one.

It is about a group of police who search for missing children. It is in a foreign language (I want to say from Spain or Italy, but that could be wrong).

I know for sure that the cover has an officer who is holding up a picture of a missing child's face in front of his face.

If anyone can help it would be appreciated!