This is one of standard formula movies. The family is cute and overtly functional. However, under the covers, kids have problems and parents are dumber than dirt. They vacation in a low-tech environment because its technology that caused this family to be dysfunctional. Of course the parents do not know what technology is so that is why they been a problem on technology. Against know about it all too well so that is why they been the problem on technology.
Nothing with keynote this change in the situation. Therefore, we throw in malicious aliens, goofy zombies, "haven't got a clue" authorities, and ET wannabe, and the kitchen sink. Maybe the kids will learn something from this. Maybe the parents will still go home without a clue. Maybe the authorities go off into the sunset. Maybe we spent X. minutes of our lives.
I am not saying that people who do not appreciate kid's slapstick would not appreciate this movie but they are the only ones that could.
Some of the actors are popular and evidently so is Ashley Tisdale.
For those with a tendency to enjoy this kind of movie I suggest you avoid this movie and watch "The Goonies" (1985).
For technophiles, I only saw the Blu-ray and cannot compare it. However, the visuals and sound is all that is promised.The Goonies