In other words, it's probably quite good, but it's hard to tell because it's buried under all that seasoning.
It's a clever movie, there's no doubt about that. It pays homage to a lot of movies, including Singing in the Rain, and it has elements of both The Hudsucker Proxy and Blade Runner mixed in. It's a little interesting that Robin Williams was cast as one of the robots, Fender; his voice was probably supposed to evoke the Genie in Aladdin, but the context can't help but remind one of The Bicentennial Man.
The music is pretty decent, too. There's a very well-placed song by Tom Waits, and also a new one by Fountains of Wayne.
I don't get why fart jokes needed to be added, but the rest of the audience seemed to think they were funny.
It's a clever movie, as I've said. The only problem is, it's a bit of a tin woodsman, desperately in need of a heart.