I have mixed feelings. I enjoyed the movie and would see it again. However, as mentioned above, I was afraid that, if it was a big hit, it would just inspire shitty sequels and reinforce WB's earlier thought that now every comic book movie had to be dark and gritty.
How do you pull off a sequel to Watchmen?
I don't think it would be that hard to do. It would be simple to carry on the next chapter in those people's lives. Alan Moore despite his wishing us to think otherwise isn't the be all end all of writers.