Actor Big B expressed shock over the news of the shooting in Denver during the midnight premiere of the film The Dark Knight Rises.A young man opened fire at a theatre in Denver, killing 12 people, and leaving many others injured.Big B took to tweet about the incident and express his thoughts. Bachchan tweeted, "Each day something disturbing appears. Saw live footage of Colorado killings... gunman dressed as Batman saying he was The Joker."