 As of 2003, Bartenieff was also teaching at the City University of New York, and in a high school in the Bedford-Stuyvesant neighborhood of Brooklyn.Bartenieff made his stage debut at the age of 14 in the 1947 Broadway theatre production "The Whole World Over", directed by Harold Clurman.After appearing in a few shows on Broadway, Bartenieff went to London for training at the Royal Academy of Dramatic Arts, where he "fell in love" with the works of Shakespeare.