1. Not only did Harold Russell win Best Supporting Actor for his first-ever acting role in The Best Years of Our Lives in 1947, he simultaneously became the first person to win two Oscars for the same part.

2. Mary Poppins was Julie Andrew's first big-screen movie role — it landed her the 1965 Best Actress award.

3. Lupita Nyong'o's 2014 Best Supporting Actress Oscar came after her breakout Hollywood movie role in 12 Years A Slave.
