Well, I don't know if I'd recommend it but... If you like movies with a GOOD story line (I think this one is, somewhat), explains everything in detail (but takes forever), and humans f**king aliens... Then sure, it's a great movie.
But IMO, I think it's a lot of talking and requires some thinking; not too much action as expected though. Could look like it will come out with a sequel as well.
In simple words, this is a movie that should be seen at home with a nice entertainment system setup; not worth the money at the movies.