Heather and I went to see Cats & Dogs yesterday and it was silly and unrealistic and goofy and fun fun fun. I really liked it. (Who doesn't like talking cats and dogs?) It helped, of course, that the audience was filled with children who giggled like crazy at the silly predictable antics. It was contagious, and I found myself laughing along out loud as the cats drove a limo (one steering, one on brake, one on gas) and during some of the Matrix-esque cat and dog fight scenes. Salon has a pretty good write up about it as well.
If you saw the preview and thought, "Hmmm…that could be funny," I recommend you see it, especially if you like Austin Powers-type James Bond humor. You'll probably enjoy it. If you saw the preview and thought, "That looks dumb, animals can't talk," don't go. I bet it's not your kind of film. When I returned home last night, I found myself talking to my cat (a usual occurrence) but this time, honestly, I thought he might understand me. I even said, "I know you can talk too, you know."