How can anybody make such a terrible sci-fi movie ?! You can't possibly imagine it to be any worse . This movie just achieved the highest level of sucking in whatever aspect imaginable ! In fact it is so terribly bad that makes you think it's made by the greatest mind of 21th century ! And you ask why is that ? Paying attention to every little Sucky detail and making it suck even more is not something ordinary men can do , it needs a genius man, getting help from a genius crew, doing a lot of thinking and hard work . So if this was the goal of the staff of the movie(sucking as much as possible in 70 minutes), then I should say they achieved it perfectly, no hesitation whatsoever ! Considering this fact we can say :
DIRECTING : Simply brilliant ---ACTING : Marginally the best acting possible to mankind ---VISUAL EFFECTS : OMG! I am sure they found real Aliens and Avatars, made them furious of each other somehow,started filming their war,got caught in the middle,survived the war,edited the valuable footage and rolled it out as a movie ,cause otherwise how could everything in the movie be so real !!!!!!!!
All the above aside , I think if you watch this movie as a comedy everything starts to change ! Then it's definitely a astonishing comedy with lots of laugh and fun !