After weeks of hot debating, io9's readers have now officially picked the very worst science fiction movie of all time, in our March Madness bracket. And the winner is... Battlefield Earth. In celebration we will be speaking in John Travolta's insane Psychlo accent for the rest of the day. Congratulations, rat brains!

This is it, after many long weeks of battles and MAJOR upsets — Phantom Menace losing to Superman IV! — Battlefield Earth and underdog Catwoman are in the final showdown. Only one can win the crown of worst movie ever made! Decide now!

It's time to vote on which two titans of terrible science fiction will battle it out in our championship game. Will Catwoman's underdog run continue against The Last Airbender? And who makes the worst scifi: John Travolta or Eddie Murphy?

We're down to the Elite Eight in our quest to find the worst science fiction movie ever made. Who will it be? Mac & Me or Catwoman? Battlefield Earth or Batman & Robin? The time to vote is now!

Crown the very worst scifi movie ever made! It's down to the sweet sixteen and it's going to get ugly. The Happening goes up against Eddie Murphy's Pluto Nash. What was the biggest upset from the last polling? Dreamcatcher losing to Catwoman! It's horrible movie madness! Madness we tell you! VOTE NOW!

It's time to vote on the rest of the second round of our March Movie Madness! Today is all about horrendous sequels, including X-Men: The Last Stand, Transformers: Revenge of the Fallen, Highlander II, Exorcist II, and Mortal Kombat: Annihilation!

Is a race to the bottom! We're so much closer to crowning the world's work scifi flick of all time! This round The Phantom Menace faces that rotten 90s Godzilla picture. Plus Battlefield Earth goes up against the giant robot body full of tiny terrible people in Meet Dave.

Vote now on the rest of science fiction's worst movies for our March Movie Madness first round. Today's craptacular selection includes Attack of the Clones Star Trek: Nemesis, The Last Airbender, Green Lantern... and sentimental favorite Manos: The Hands of Fate!

The most important tournament of our time has returned: io9's March Movie Madness. Last year the bracket of doom bestowed the honor of greatest science fiction movie ever made on Serenity. Much to the surprise of many of us, Whedon's space adventure beat out Star Wars: The Empire Strikes Back in the final round. But…

Look, let's face it, we all love an internet fight. It's the American pastime, the sport of kings, and the game of life.