Christian Bale, seen here at "The Dark Knight Rises" New York premiere on July 16, 2012, in New York, was among those sending messages of sympathy to Aurora, Colo.
Bale, who plays Batman in "The Dark Knight Rises," said: "Words cannot express the horror that I feel. I cannot begin to truly understand the pain and grief of the victims and their loved ones, but my heart goes out to them."
Keep clicking to see how other stars and prominent figures have reacted to the tragedy.
Pictures: Christian Bale visits Aurora