I've always been a fan of the Rave theater at westroads mall off of 100th and dodge. Really comfortable seats and you can put your leg through the seats in front if it isn't crowded, my knee can't handle sitting bent for so long, so that's a huge plus for me.
Village Point off 156th and Dodge is a good place, women seem to love it there. It is outdoor walking, so if it's really cold it might not be too great.
Bene Pizza is my favorite pizza, off of 120th and Maple. it's pricey and has some old school pinball machines, me and the wife love going there. Also has good beer on tap, and the owners daughter makes really good homemade cupcakes, we always get some to go after we eat.
Can't say to much about hotels since I live here and never need one, I'm sure someone has some good recommendations here.
I for one find Omaha to be much more stimulating with better options than lincoln, maybe I'm just biased... Hope you guys have fun! I'm wanting to see Looper too, Rolling Stone gave it great reviews.