Jim Carrey, star of Kick-Ass 2, has withdrawn support for the film following the Sandy Hook massacre.
Carrey tweeted: "I did Kickass a month b4 Sandy Hook and now in all good conscience I cannot support that level of violence. My apologies to others involved with the film. I am not ashamed of it but recent events have caused a change in my heart," he added.
Carrey is well-known for his support of gun control measures.
Kick-Ass 2 sees Chloe Moretz and Aaron Taylor-Johnson reprise their roles as high school pupils turned DIY superheroes Hit Girl and Kick-Ass. The movie will be released in the UK on August 14 and the US on August 16.