Sam Rockwell - 'Three Billboards Outside Ebbing, Missouri'

The veteran character actor looks back on years of side-jobs and failed auditions, learning to make the most of parts of any size and landing the role of a lifetime — for which he is now favored to win the best supporting actor Oscar — in Martin McDonagh’s acclaimed dramedy. But first: Carolyn Giardina, THR’s tech editor, joins Scott to dissect — and predict — the technical Oscar categories.