From WENN.com

The 16 year old has insisted on performing her own stunts for her role in photographer Tyler Shields' directorial debut, in which she plays a girl who takes on a gang of boys who try to 'initiate' her into their pack.

But production on the set in Canada was halted after Breslin accidentally knocked out a stuntman during an action scene filmed in a car.

According to TMZ.com, Breslin's unidentified scene partner had to visit the on-set medical expert, and was left with a black eye.

Breslin is said to have been ""extremely apologetic"" for the mistake.