Starring a shark that enjoys munching through the Golden Gate Bridge and an octopus that targets oil rigs, 'Mega Shark vs Giant Octopus' is fuelled by a ridiculous script that is anything but watertight. This future cult classic has been released on DVD after an extremely limited cinema release. Can you resist its unintentional humour?

Check out our comprehensive no star review of the movie that takes bad film-making to new heights, or read on for our round up of 10 of the worst mainstream disasters ever seen on screen. They're so bad, they're good!