Aliens in the Attic is a completely far-stretched movie in the tradition of 80s kid's classics.  This type of movie has been attempted many times over since the 80s without much success.

QUALITY:
Good.  The picture stays clean and the sound is lossless.

BONUS FEATURES:
Digital Copy, Gag Reel, Alternate Ending, Introductions by Ashley Tisdale, Featurettes, animated short.

The movie actually works and it's fun throughout.  The gag reel, though funny, is mostly sifened from the same gag reel that plays in the ending credits so it's more than disappointing.  The special effects are pretty good for a kid's movie, the acting is ok and the storyline, though no completely original, will keep you and your kid's laughing fairly steadily for an hour and a half.