Also, is this going to be a sandbox-style game, or a GM Directed one?
Yes and no, I'll come up with some events and encounters to kick things off, but when you guys inevitably have cool ideas I'll write those in and build on them. I'm all for letting characters shine at what they do best, be the Heroes, and telling fun cinematic stories. I definitely don't get all in a huff when things go off the rails so to speak, so yes and no if that makes sense.