Thelma Colbert Schoonmaker is an American film editor who has worked with director Martin Scorsese for over fifty years. She started working with Scorsese on his debut feature film Who's That Knocking at My Door , and edited all of Scorsese's films since Raging Bull . Schoonmaker has received seven Academy Award nominations for Best Film Editing, and has won three times—for Raging Bull , The Aviator , and The Departed .Early lifeSchoonmaker was born in Algiers, Algeria, the daughter of American parents, Thelma and Bertram Schoonmaker. Bertram, descended from the New York Schoonmaker family, was employed as an agent of the Standard Oil Company and worked extensively abroad. She was raised in various countries, including on the Dutch-Caribbean island of Aruba.Schoonmaker did not live in the United States until she was an adolescent, in 1955, and was initially alienated and dumbfounded by American culture.