Dark Knight Rises vs. Inception: Same Cast, but What Does It Mean?

Half of the Inception cast is in the new Batman movie. Is that normal for a director to just keep casting the same stars in everything? ?Gabriel, New York, via the...

Source: http://feeds.eonline.com/~r/eonline/answer/~3/VzcihkZ4bJk/282408

Elena Lyons Elisabeth Röhm Elisha Cuthbert Eliza Dushku