As you know, Attenborough won Best Director and Best Picture awards for Gandhi while Kingsley won Best Actor.
Coincidentally, I had seen Kingsley in Peter Brooks' groundbreaking version of "A Midsummer Night's Dream" at The Royal Shakespeare Theatre in 1970. (Of course, I didn't know it was groundbreaking until years afterward.) And I ran in to Sheen in 1980 while he was stumping for Ted Kennedy's failed presidential bid. I don't belive either remembered me.