A: Yes. The Chronicles of Narnia: Prince Caspian is the second theatrical release (following The Lion, the Witch and the Wardrobe ).
Watching in high quality through a legal service enhances the visual effects (by Weta Digital) and the surround sound mix.
A: Just clicking a link is generally not illegal, but downloading copyrighted content from an unauthorized index is copyright infringement in most countries.
If you are looking for information about the second installment of Narnia or seeking legal ways to access it, here is an overview of the story and where you can find it. The Return to Narnia: Prince Caspian