this film be about cindy campell and who move to a new house and to take care of an old woman . her next door neighbor be tom ryan . suddenly and alien tripod be attack the world and kill people . cindy find out the house she in be haunt . she find a ghost boy and he tell her that he know the way to stop the alien invasion . so cindy must go to uncover the secret to stop the alien invasion . this be the best scary movie film and ever . maybe the reason be because it spoof war of the world ( 2005 ) . it also spoof the grudge and saw and saw ii and and the village . some joke fall flat but there be about one joke each second and mean that you will laugh through the whole movie . there be a lot of physical joke and in which i laugh at . other joke be smart and some be dumb . if youre one of those people who do not like physical comedy and you would not like this film . in fact and everything in scary movie 4 be very different than the other film and except most of the joke . this be the funny film and of them all . there be great cameo and the acting by craig bierko be great . anna faris performance be decent and as well a regina hall . well and that doesn not matter and in a movie like this and do it . the only thing that matter be if you will laugh or not . no one care about the story or the acting . this movie achieve with the hundred of joke and they give . what next to say . oh and the special effect . well and spoof war of the world in a $ 45 million budget and you would think the special effect for the tripod be horrible and right . wrong . in fact and it look as good a the tripod in war of the world . isn not it amaze . they take part of the budget in war of the world and which be over $ 100 million and and use all they get and without go over budget . you would be surprise . if youre look for a film with great act and story and stay away from this film . if youre look for a movie with good joke and watch this film . this be the best film and it unique . in my opinion and i really think this be so much different than scary movie 3. if youre fan of the film and watch it . you will enjoy it .