"We were on quite a cramped set and he was ducking under the crane. He struck his head on the weights on the end of the camera crane. He split open his head and we had to get the doctor, " contactmusic.com quoted co-producer Anton Monsted as saying.
The director, who is filming his version of the classic tale with Leonardo DiCaprio, Carey Mulligan and Tobey Maguire in Australia, had to halt the shooting after he was injured.
The movie, which also features Indian superstar Amitabh Bachchan, is set for Christmas release in 2012.