I've read all the harry potter books, read Lord of the Rings, and have read the Narnian books, as well as having seen all the movies you've just mention.
My point still stands, there is a change in tone and quality. LWW was a much more fluffier movie, the christian undertones far easier to see, etc. Prince Caspian, on the other hand is darker, more serious, and over-all a better movie, it is a change from the first movie. Also to keep in mind is LWW is a much more popular book than any of hte other books. Now I did not say that this was a change from the books, it simply is a change, now whether that change is reflected in the books is irrelevant. Now... Please cancel out your fanboyism and read my post again, I was not commenting on the success in terms of quality of the film but in Box Office which is a radically different thing. So again my point still stands, an apology or no response will suffice, thank you