I only go down there once a year for work now, so I'm sure others will have better answers than me, but if you want to spend the money, The US National Whitewater Center (usnwc.org) is a fun place to go. They have different packages there that you can purchase. Good way to kill a half day.
And I don't know any soul food places in Charlotte but if you like BBQ, then Mac's (macspeedshop.com) is pretty decent.
Sounds OK- but I think Marvel really needs to SLOW DOWN on the movie releases. I know X-Men and Spider-man rocked, but now we are getting waaaaaaay too many at once. That is bound to lead to crap like Steel (I know, DC, but similar scenario).