If you like science fiction adventure comedies, you'll probably like this—it's a little Firefly, a little the best of Star Wars, a little Galaxy Quest. It will appeal to superhero fans, but it really isn't a superhero movie.
The script is a bit heavy-handed in a few places. That's okay, because those moments don't last for long.
The weakest performance is Zoe Saldana's. She looks great, but her take on the character seemed a bit soft. I didn't know what to expect from Karen Gillan, which may be why I was most impressed with her. Everyone else does fine work.
The Nova Corps is far more male than necessary. The Night Witches proved women can be mighty fine pilots in wartime.
Bring on the sequel!