Eh, not terrible, but the movie didn't really work in terms of providing a complete story.
If you read the novelization, it will make more sense, but there are a ton of major unanswered questions.
The major problem, of course, was trying to tie in 3 or 4 separate plots.
The Sandman role was made too sympathetic as well.
On the other hand, I think it was well-acted. Whatever problems were there were due to the script, not to the actors.
That is all.