[quote name='UncleGuito']I picked up Children of Men, Casino Royale, and The Departed for $20. They were all in mint condition, overstock I guess.[/quote]Only major problem is Blockbuster doesn't have the inserts or anything in the cases, and sometimes they get single disc editions instead of special editions. But I believe COM just got a special edition (or hasn't yet?), Bond was the SE, and Departed as well (at least in my store).
Also the cases they are packaged in suck. Ask if they have any extra, regular amarays. If they aren't too busy I bet they can find a few for the movies you just bought. Then they are practically new.