The father of Heath Ledger has said the mass killings at the Batman movie screening in Denver should make the United States think again about gun laws.
Speaking to Australia's Herald Sun, Kim Ledger said he was appalled when he heard about the massacre, but he said "we can't blame Heath or the character. It's fictitious."
The gunman called himself 'The Joker', the character played by Kim's late son in The Dark Knight.
The star of The Dark Knight Rises, Christian Bale, has visited a Denver hospital to meet survivors of the Aurora cinema shootings.
James Holmes, the 24-year-old man accused of killing twelve people at a cinema in Colorado, has made his first appearance in court.
The US president met with families and survivors as thousands gathered for an evening memorial service to remember the victims.