I haven't read the book, so I don't know how faithful it is to it. But I was very disappointed in the movie.
I had heard of it as a Christian allegory. It includes what is essentially a crucifixion and resurrection scene (the lion Aslan agrees to be killed to save the life of Edmund, a boy portrayed as a traitor), but this seems awkwardly placed in an otherwise secular action movie. It just doesn't fit. This was the major source of my disappointment in the movie. On the whole the movie did not seem to me to represent Christian values, and the crucifixion and resurrection bit semed quite discordant with the rest of the movie.
The acting was generally good, with the two young actresses playing the two girls offering particularly outstanding performances. But it was basically a fairly run-of-the-mill action movie with the discordant Christian reference just plopped into it.
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