Overrated: As a bunch of people have said, Bayformers.Underrated: I don't watch that many movies, but I'm just gonna go with the random Shaw Brothers kung fu movies I've seen (One-Armed Swordsman, Return of the Five Deadly Venoms, Five Element Ninjas, etc.). I mean, sure, they're cheesy, the fight scenes are all unrealistically choreographed, they often have terrible dubs, and probably only have extremely obscure cult followings nowadays, but hey, I love those movies, and I think they need more love.