Controversial filmmaker Michael Moore is calling for a mass boycott of the U.S. state of Georgia after officials executed convicted murderer Troy Davis amid a storm of protest.

Davis was placed on Death Row in 1991 for killing an off-duty cop, but many of his supporters claimed he had been wrongly convicted and he protested his innocence right up until his death by lethal injection on Wednesday night.

Kim Kardashian, Mia Farrow and Alec Baldwin were among the stars who urged Georgia officials to call off the execution, and Moore is now urging his famous friends and members of the public to join a complete boycott of the state.

He is also demanding publishing bosses pull his newly-released memoirs, Here Comes Trouble, from the shelves of bookshops in Georgia.

In a post on his official website, Moore writes, "I encourage everyone I know to never travel to Georgia, never buy anything made in Georgia, to never do business in Georgia. I will ask my publisher to pull my book from every Georgia bookstore. And if they won't do that, I will donate every dime of every royalty my book makes in Georgia to help defeat the racists and killers who run that state."

"I ask all Americans with a conscience to shun anything and everything to do with the murderous state of Georgia."