I do believe that there is other artificial life beyond this world-- But the movie 'Fourth Kind' was a crock of shit.
The woman that portrayed as having aliens invade her home, etc. was just a hired actor.. It even stated so in the credits. Did you ever notice that whenever something serious was happening, ( example, spaceship hovering over the house ) the 'Real' footage became blurry and fuzzy?
The movie itself is just a crock of shit.