Trivia Quiz: Relationships

What is the relationship between the following duos?

Tommy Lee Jones -- Al Gore
Jennifer Aniston -- Telly Savalas
Imam -- David Bowie
Warren Beatty -- Shirley Maclaine
Debbie Reynolds -- Paul Simon
Josiah Wedgewood -- Charles Darwin
Martin Sheen -- Emilio Estevez
John Wayne -- Duke Morrison
Rita Hayworth -- Orson Welles

( And the answer is.... )