Sean Penn and Dakota Johnson chat with ET's Kevin Frazier in Los Angeles about how their friendship led to their new film, 'Daddio.' The co-stars also open up about what to expect from the film, which is about a woman taking a cab ride from the JFK airport to New York City and engaging in a conversation with the taxi driver about the important relationships in their lives. 'Daddio' is in theaters on June 28.
