AceShowbiz -

Robert Downey Jr. almost got a serious injury during the filming of "Sherlock Holmes". According to the report by The Sun, the star of "Iron Man" who is playing legendary detective Holmes has been knocked unconscious when shooting a fight scene with co-star Robert Maillet at Chatham dockyard in Kent.

Though walking away with six stitches in his mouth, the incident left the 43-year-old "out cold" for about six seconds and "drooling blood" before medics could bring him round. Recalling the incident, a nurse said, "Robert was accidentally caught on the chin by a thundering hook. He went flying and was out cold. He didn't want to go to hospital and kept trying to get up. He's a trooper. But there have been lots of other problems too."

Other that this mishap, another serious incident also occurred on the set. On Thursday, November 27, a loaded petrol tanker exploded in a fireball during a delivery to the set, forcing the set to be closed for two hours and Downey Jr., Jude Law and director Guy Ritchie to flee from the set. These series of accident on the set has caused the filming crew to think that the movie may be cursed.

Aimed for a November 20, 2009 U.S. release, " Sherlock Holmes" reportedly is based on Lionel Wigram's upcoming comic book and centers on the adventures of the famed 19th Century detective. Apart from Robert Downey Jr. and Jude Law, this action thriller film will also see Rachel McAdams as she takes on the role of Irene Adler, Holmes' love interest.