RFK’s wife stars in daughter’s Sundance’s ‘Ethel’ (AP)

Rory Kennedy, left, and Ethel Kennedy, from the film 'Ethel,' poses for a portrait during the 2012 Sundance Film Festival on Sunday, Jan. 22, 2012, in Park City, Utah. (AP Photo/Victoria Will)AP – Ethel Kennedy prefers coming to the Sundance Film Festival when she’s not the star of a movie.