By no means a great Batman movie. However it is better than Batman Forever. You can at least laugh at how ridiculous this movie is and there are some good moments. The pacing is also pretty good. Can't really say that about Forever. George Clooney was certainly better than Val Kilmer was. He's no Michael Keaton or Christian Bale but he's certainly not the worst Batman. Mr.Frieze and Poison Ivy are infectiously fun to watch as they ham it up in a delightful way.
Rowan Atkinson is the only good thing about this movie. Everything else is cliched spy stuff with predictable and poorly done humor and slapstick comedy. It's also really dated with poor CGI and cheap looking sets. The newer ones are better.