I can’t bring myself to say that the wild, goofy, family-friendly comedy “Space Cadet” is actually a good movie, but it does deliver a lot of daffy fun. This one feels like a Disney Channel movie for a slightly older crowd (think 1997’s “RocketMan“ — not the Elton John biopic), but way more over-the-top. It’s absurd, but still mildly enjoyable (especially if your standards are very low). Rex Simpson (Emma Roberts) is a quirky Florida girl with dreams of being an astronaut. After some creative “doctoring” of her resume and application, Rex lands herself in NASA’s ultra-competitive astronaut ...