PG-13, huh? Believe me when I say, this movie is not for kid's. A women tries to undress herself in front of the main? Disgusting. The villain is extremely androgynous, and he and the people surrounding him wear reveling outfits when they are first debuted. This film is not for kids.
Definitely not for kids, but teenaged boys are going to love it.
On the positive side I loved the sci-fi concept of the movie. I thought the scene where the woman tries to offer herself sexually to the hero and he politely declines was a great example of being gentlemanly.
On the negative it does regress into a shoot 'em up at the end of the movie, and the military cliche of shoot-first-ask-questions-later gets old.