When you spend years working on a flick -- from writing the script, to filming scene after scene, to sitting for hours in an editing suite trying to perfect the final product -- it's inevitable that some things will get overlooked.

In the past, we've pointed this out through our series of flick mistakes.

However, sometimes directors forget about more than just a misplaced prop.

Sometimes, it's a huge, gaping plot hole that slips through the cracks.This weekend, the superhero epic "The Avengers" hits theaters nationwide.

While the flick more than lives up to the hype, there are, as with any film, a few plot holes.

For instance, when (SEMI-SPOILER ALERT) Thor and Iron Man are fighting in the woods, bad guy Loki is just off in the distance.

So why doesn't he run away while the two heroes were busy arguing?That said, let's take a look at some of the Biggest Plot Holes in Movie History.... See Complete Article @ Movie Fone