Watch Lise Meitner: The Mother of the Atom Bomb for Free: How to Stream the Movie Online at 123Movies. . To historians, physicist Lise Meitner deserves to be placed on a par with Einstein, Heisenberg and Otto Hahn. In the 1930s on the verge of World War II, she led a small group of scientists who discovered that splitting the atomic nucleus of uranium releases enormous energy. This extraordinary film tells the story of a woman who was far ahead of her time as a scientist and a pioneer of feminism.