Complex sentence: He made his feature film debut in 1984, as Sally Field's blind boarder Mr. Will in "Places in the Heart"; for his portrayal of Mr. Will, Malkovich received his first Academy Award nomination for Best Supporting Actor.
Split into simpler sentences: He made his feature film debut in 1984 as Sally Field's blind boarder Mr. Will in "Places in the Heart". For his portrayal of Mr. Will, Malkovich received his first Academy Award nomination for Best Supporting Actor.