Vanbrugh returned to Shakespearean roles in 1906 at Stratford upon Avon, where she played Lady Macbeth to her husband's Macbeth, and they soon starred together in Herbert Beerbohm Tree's London production of "Henry VIII". They continued to play in Shakespeare and other pieces, and two films, through World War I, but their marriage ended in 1918. She continued acting steadily on stage and had some success in film in the 1930s, especially in "Pygmalion" in 1938. In her 50th season on stage, she starred in "The Merry Wives of Windsor" with her sister in London, and during The Blitz, they entertained at matinees. Her last film appearance was in 1940 in "Young Man's Fancy". She died in London in 1942 at the age of 75.