Harley Quinn joins forces with a singer, an assassin and a police detective to help a young girl who had a hit placed on her after she stole a rare diamond from a crime lord.
Margot Robbie , Ewan McGregor , Mary Elizabeth Winstead , Jurnee Smollett , Rosie Perez , Chris Messina , Ella Jay Basco , Ali Wong , Matthew Willig , Dana Lee
Warner Bros. Pictures
