Breathing Lessons: The Life and Work of Mark O'Brien: Breathing Lessons: The Life and Work of Mark O'Brien is a 1996 American short documentary film directed by Jessica Yu. Mark O'Brien was a journalist and poet who lived in Berkeley, California. The documentary explored his spiritual struggle coping with his disability; he had to use an iron lung much of the time due to childhood polio. O'Brien died on 4 July 1999, from post-polio syndrome. It won an Oscar at the 69th Academy Awards in 1997 for Documentary Short Subject.