As the cinematic world waits breathlessly for the release of ‘mockbuster’ Mega Piranha, we at Best For Film have been bemoaning the trend towards making deliberately dreadful monster films (here’s looking at you, Sharktopus). With that in mind, we’re trying to reverse the trend by harking back to some of the most disastrous monsters of yesteryear, when filmmakers understood that all you needed was a leaky reactor and a comparison to the Russians to make your superbeast a dead cert. We’ve scoured YouTube for the best of the worst, and here they are: our top ten best worst monster movies!