...and to be honest I thought it was an utter let-down. Now I have to confess that when I was about four, one of my favourite films (watched many many times) was the 1979 cartoon version, and that was always going to shape my opinion of the new one somewhat.
Going off on a tangent somewhat, the thing I really loved about the Lord of the Rings films was that it felt like a group of enthusiasts who loved the book dearly had gotten together and decided to completely re-invent the story for the big screen. It was full of incredible and innovative effects and amazing attention to detail and used that to convey a real love for the book to the audience.
Narnia felt, by contrast, like a group of hollywood executives had met and decided to make money. Right from the start, there never seemed to be any affection for the book on the part of the production team. I'm not quite sure how to pinpoint what made me feel that, but that was the impression I got. Then, it seemed like <every> shot in the film was plagarised. The framing of the scenes was, in most cases, a direct rip off of the 1979 cartoon version or of the BBC version of the early 90s. Where it deviated, it stole shots almost exactly from LOTR, Harry Potter, or The Matrix in that order of frequency. Many of the battle scenes or sweeping panoramas were exact copies of LOTR shots, but done by a vastly inferior team. There was some truly appalling green-screen work and some of the worst compositing I've ever seen on screen.
In summary, it felt like a combination of the two previous screen versions, mixed with trendy shots from other contemporary films, but done by a team so lacking in artistic flair or technical expertise that it felt only like a poor rip-off. Everything else not yet mentioned was mediocre at best, and on the whole I left the movie feeling utterly disappointed.