Dumbest Movie Inventions Of Al Time

From American Inventor Spot:

If you're in Hollywood you get death, destruction, a shattering of time/space sensibilities and occasionally just plain overall badness for most of mankind! A glance through Hollywood history shows a steady stream of well-intentioned (and ill-intentioned) inventors whose ideas have a tendency to blow up in their faces.

What on-screen inventors are in sore need of government regulation? What Hollywood inventions won't be showing up anytime soon on QVC? Here's a look at some of the dumbest movie inventions ever to grace the silver screen.