I saw the new Prince Caspian film last week, and thanks to a timely warning from my sister, I did not read the book beforehand. I recommend that anyone who hasn’t seen it yet do the same. The film adaptation is great fun and stays true to the message of the book, but it isn’t the same as the book. Personally, I think the changes they made with for the film make it a more interesting film than if they had simply taken the accounts of the book and put that on the screen.
Afterwards, I re-read the book for the first time in ages. It has been my second favorite of the Narnia books, tied with A Horse and His Boy and beat out by Voyage of the Dawn Treader. Reading it now, as an adult, I am not as entertained by the book as I once was.