Given the surfeit of superhero movies, it comes as a very pleasant surprise to see a low-budget indie taking an unassuming guy with special powers and playing it with a minimum of razzmatazz. In his debut feature, director-performer Thomas Salvador completely upends the genre, crafting a film as self-effacing as its title character, in which a man gains inhuman strength when he comes in contact with water. Although such movies nearly always carry messages about not fearing what makes us distinctive, big-budget tentpoles tend to bury the characters’ humanity under Everests of bombast, losing sight of why such themes matter. Instead, Vincent makes this idea its central motif: Here’s a guy who’s not out to prove anything, yet by virtue of his gifts, he becomes a target of fear. Impressive shots of his dolphin-like swimming represent basically the sole nod to effects.