Christopher Nolan’s “Oppenheimer” is a three-hour-long biopic that takes the audience on an intense sensory, fast-paced journey through the life and work of physicist J. Robert Oppenheimer, the “father of the atomic bomb”. The film is based on the Pulitzer Prize-winning biography “American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer” by Kai Bird and Martin J. Sherwin. Cillian …