As the new breeze of superhero genre, Joker (2019) also cannot avoid some controversy. Not too many scenes of violence but the gore segment in the final chapter makes many audiences at the film festival shocked. In Vietnam, some scenes of violence have been removed to suit the majority of viewers, but it also left a sense of disappointment. Besides, the ambition of the producers to convey the message of the film also made critics have mixed opinions. In addition, the influence of a number of works directed by legendary Martin Scorsese such as Taxi Driver or The King of Comedy in the film also makes the experience of the “nerds” less unique.