Think of every military action movie cliche you can. The maverick hero who's just an average guy. The uptight rule-following second-in-command who learns a good lesson. The token concerned woman who has one line. Enemies who aren't so different after all. So many of these hackneyed stereotypes are thrown at the Gerard Butler-starring Navy thriller "Hunter Killer" that you have to wonder if this is the "Scary Movie" of submarine movies. Directed by Donovan Marsh, and with an army of action producers behind it, "Hunter Killer" is just this side of a parody. But there's so much fun to be had with formula, and if you aren't taking "Hunter Killer" all too seriously, the film is a hoot, even if that's not exactly what the filmmakers were going for.