Walt Disney Pictures has updated the official Blog for The Chronicles of Narnia: Prince Caspian. The Blog entry features co-screenwriters Christopher Markus and Stephen McFeely talking about the sequel's story. Here's a clip:

Consequently, we decided to weave the two plots together early, bringing the Pevensies into Narnia near the start and giving them a greater role in Caspian's journey. This not only helped on a structural level, it also allowed us to take advantage of the alliances and antagonisms that would evolve when we tossed three kings and two queens together into the same room — or underground chamber, as the case may be.

Go here to read the full post!