The 10 Dumbest Movies of All Time, Ranked by Collider

"There will always be an ingrained audience for those looking to let loose and enjoy a dumb, mindless film. Being an unintelligent film is far from a sign of low quality, as many films embrace their chaotic, nonsensical sides to become wildly entertaining and effective in their own right. Some films use their stupidity as a tool for exceptional and entertaining filmmaking ('Jackass,' anyone?). However, some manage to be so moronic and unintelligent that it baffles the mind, with a concept so absurd it's impossible to take seriously. There is a fine balancing act between the stupidity of a premise and the well-crafted and impactful filmmaking chops to make such a wild premise work, making it all the more notable when a film is simply so dumb that it sets off the balance. It's certainly possible to find entertainment within these unbelievably dumb films, yet it would be much more difficult to find any intelligent or nuanced takeaways from them." - collider.com