We saw this film on opening night, after getting tickets at 8pm. The theater was pretty full, but not packed: if our experience is typical, then the movie will make a good deal of money, but not a ton.
Overall, the film was not that good a story. However, it was entertaining, if you like action and lots of violence and death. We watched a little of Casino Royale on DVD beforehand (and the rest afterwards), which helped us get some more context for Quantum of Solace.