Task: Question Understanding
Input (English): Context : Turtle Diary is a 1985 British film about ``people rediscovering the joys of life and love,'' based on a screenplay adapted by Harold Pinter from Russell Hoban's novel Turtle Diary, directed by John Irvin, and starring Glenda Jackson, Ben Kingsley, and Michael Gambon. 
Question : Which director worked on Turtle Diary?
Output (English): director