Which is actually why I loved it!
Watchmen's a boring story. Half of it is a tedious re-kindled love affair obsessed with a troubled past, and the other half is a moody misanthrope creeping around. All with the occasional shocker to keep us moving on to the next issue.
Somehow, it comes through as genius in book form... But, yes, it's hard to do that in a movie. The fact that they tried warmed my heart.