Post by bd74 on Dec 6, 2018 18:41:17 GMT
Probably because they were campaigned as supporting by the studios. I think the placing in supporting is based on the likelihood of them winning an Oscar as opposed to being nominated as a lead. it's been many years since the Oscars last nominated joint leads from the same movie. I believe Thelma & Louise in the early 1990s was the last time.