Charlie Sheen is a Scientist for NASA who discovers a plot by aliens to take over the world with...global warming via greenhouse gas emissions.
With the help of a streetwise teenager from L.A. and his on again, off again lover he tries to stop the aliens from tarnishing his career/kill him. Throw in some TERRIBLE CGI and a preposterously long trip to Central Mexico this movie is basically a shoe in for discussion.
Seriously, Charlie Sheen plays a NASA scientist. What else really needs to be said?