In 2017, Rockwell's performance as a racist, troubled police officer in the crime film "Three Billboards Outside Ebbing, Missouri" won him the Academy Award for Best Supporting Actor. He was nominated in the same category the following year for his portrayal of George W. Bush in the 2018 political satire "Vice". In 2019, he portrayed Bob Fosse in the FX biographical miniseries "Fosse/Verdon", earning him a nomination for the Primetime Emmy Award for Outstanding Lead Actor in a Limited Series and winning the Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Miniseries or Television Movie.