There are many moviegoers who love the amateur vibe of Ed Wood, Jr.'s Plan 9 from Outer Space, which has been widely hailed as the worst film ever made. Saving Humanity, a cheesy sci-fi sex romp, gives Plan 9 a run for its money with its full of holes plot and amateur special effects, but it doesn't match the goofy charm of the classic older film.
Saving Humanity recycles ideas, character types and story from other sci-fi movies, and as the plot unspools you'll have a feeling of deja vu because you've seen it all before; there's even a monolith, an obvious steal from Stanley Kubrick's 2001. The story which involves jumping around in time makes little sense, and the porn star actors don't look comfortable delivering lines while wearing clothes. The sex scenes are choppily edited and too brief, so for the viewer the movie doesn't feel that erotic or sexy, even though the cast consists entirely of popular porn stars including James Deen, who appeared with Lindsay Lohan in Paul Schrader's The Canyons. The producers threw a lot of money at this but you wonder who they thought their target audience was, because if they wanted to appeal to the porn loving population there's better material available for free online, and if they wanted to attract sci-fi fans they did a bad job with the story, action, and cheap special effects.
The highlight (lowlight?) of the movie is the final scene, which for some reason is a song and dance number performed by the porn star cast, and it's as strange as it sounds. The actors bravely sing and dance their way through a forgettable tune, but everything about it is so bad and it takes itself so seriously that it's unintentionally funny. With the exception of that last hilariously bad scene, this movie isn't worth the time.