We are exploring the effects of childhood trauma in 'Joker': Joaquin Phoenix

'Joker' star Joaquin Phoenix has been receiving rave reviews for his take on the iconic DC Comics villain. NDTV's Rohit Khilnani caught up with the actor in Los Angeles and spoke to him about the early reactions to the film, his character and what went behind playing the dark villain in the Todd Phillips directorial. Joker hit screens on October 4th.