What is the worst movie of all time?

Battlefield Earth (by Scientology founder L. Ron Hubbard).

Hands down the worst, stupidest movie EVER made.

Ooh, or Manos, Hands of Fate. One of the worst movies ever made, but it made for one of the best episodes of MST3K ever.

EDIT @ XY GTHO:

"Space Mutiny has to be one of the worst of all time."

Wall-mounted keyboards! It must be the future!

One of my top 5 MST3K episodes of all time.

I think you'll love this one:

http://www.imdb.com/title/tt0052077/

Plan 9 from Outer Space

This is right up the top of the list of the worst movie ever made - see how many mistakes you can pick before you get bored of the game and just watch in horror at how bloody awful the thing is...

Edit... @Machine Head - Deservedly so, too. It's unbelievably bad. I think I've only seen about half of it before I just couldn't take it any more and went to do something interesting, but then, I kind of like my movies to be, you know, good.

For a whole week I thought that '2012' was the worst movie that I had ever seen but then in a stroke of good fortune for it the following week I saw 'GI Joe: The Rise of Cobra'.

'Battlefield Earth' may well be the worst movie of all time but I could never bring myself to watch it.

The worst that I've seen,other than MST3K during channel surfs, was "Santa Claus Conquers the Martians".

The Little Shop of Horrors looked like Fellini compared to that.

Some of the stuff on MST3K looked far worse.

edit

@ aaronmsl: Yep, that is the universal pick for the absolute worst, even worse than "Glen? or Glenda?"

So far I have eluded watching Plan 9, but one of these days.

Worst one I've seen is House of Wax.

The best part was when Paris Hilton died in it (her character in the movie).

The Giant Claw.

It was my dad's favorite movie and it is totally awesome. It's big bird on acid.

Here's the trailer. My god, it's so amazing.

http://www.youtube.com/watch?v=6sKGz-hQ0yg

I watched MST3K for its entire run. Should I list them all?

Space Mutiny has to be one of the worst of all time.

Hey, then this Movie is For YOU. It's Called - Scout Camp...

[insert every movie with Nicholas Cage]

Disaster Movie, it's ******* garbage.