Luca is about a pair of brothers, Luca and Alberto, who look normal when on dry land in a small town on the Italian Riviera, but are actually a sort of sea monster. The movie follows the pair, and a human girl they befriend, as they spend time together, and try not to get discovered for who they really are. And that’s about it. It’s a simple premise that leads to a fun story. The Gizmodo review says as much, you’ll probably like this movie, but when it comes to deeper themes, there’s perhaps a little something missing.