Starts out like a boring action movie. But pay attention because it doesn't stay boring. Kudos to DP Alex Catalan for the chiaroscuro photography. The film actually references Caravaggio so probably Director Rodriguez is a fan too. Catalan also photographed Rodriguez's more recent Marshland, which is great. So, Unit 7 seems pretty simple, on the surface, but it's one of those movies where texture matters a lot. The characters are believable. Some say it's based on a true story but who knows? There probably was an effort to 'clean up' Sevilla before the 1992 World's Fair. Did it play out like this? As I said, who knows? But this is a well-made film.