Several background performers sustained minor injuries after their boat hit a sandbar Tuesday night while filming the movie The Big Year in British Columbia. The movie stars Jack Black, Owen Wilson and Steve Martin as three avid bird watchers, trying to find the rarest bird in North America. The boat, which was carrying 25 people, hit a sandbar at low tide near Tonquin Beach on Vancouver Island. Four people were sent to hospital and three were later released. One man who was kept for observation. None of the stars were on set when the accident occurred. The movie will continue to shoot in the Okanagan Valley, which is standing in for Arizona and New Mexico. The Big Year is scheduled for a 2011 release.