Jim Carrey has pulled out of promoting 'Kick-Ass 2', because he thinks that the finished movie is too violent.

Carrey plays the role of Colonel Stars and Stripes, a former mafia enforcer turned masked vigilante who teams up with Kick-Ass and Hit-Girl.

But following his recent run-in with the National Rifle Association over gun control and the tragic events at Sandy Hook, he's now saying that he can't condone the violence in the film.

"I did Kickass a month b4 Sandy Hook and now in all good conscience I cannot support that level of violence. My apologies to e," he tweeted, before correcting himself.

"I meant to say my apologies to others involve with the film. I am not ashamed of it but recent events have caused a change in my heart (sic)."

Earlier this year Carrey fell foul of the US gun lobbyists after he appeared in an online sketch lampooning Charlton Heston and the actions of the NRA.

Mark Millar, the writer of the comic books that the films are based on, has called Carrey's performance in the film 'magnificent', but has also expressed dismay at his decision to distance himself from the film.

"Colonel Stars and Stripes is so charismatic and all his scenes are up there with Nic Cage’s amazing turn as Big Daddy in the original which made it all the more surprising when Jim announced tonight that the gun-violence in 'Kick-Ass 2' has made him withdraw his support from the picture," he wrote on his blog Millar World.

Source: Press Release