Just saw this today. I had high expectations, but I found it extremely boring. I actually fell asleep a couple of times. The acting was horrible, as was the writing. The actors ALWAYS looked like they were inside a large indoor studio, regardless of the environment in the background.
With the heavy emphasis on CG and insufficient attention to story, the film reminded me too much of Star Wars E1 and E2. At least those films had good CG effects. Sky Captain looked hand drawn half the time. This was probably for some artistique effect, but the children’s book feel didn’t work for me.
I would rather have my 290 NT back (+ 150!!! for Sprite and popcorn - yay, Warner!) so I could spend the money on a good graphic novel or Maurice Sendak book. At least one of those would keep me awake.