British actress Natasha Richardson and actor Liam Neeson arrive at the premiere of the film "Dreamgirls" in New York in this picture taken December 4, 2006.

Vanessa Redgrave and her daughter Natasha Richardson arrive at the Metropolitan Museum of Art Costume Institute Gala in New York in this May 7, 2007 file photo. Richardson, a member of Britain's Redgrave theatrical dynasty, was severely injured while skiing at a Canadian resort and returned to New York on March 17, 2009, with her husband, actor Liam Neeson, according to media reports.