The King of Comedy (film) character fails to differentiate between his fantasies and reality in much the same way. Scorsese sought to achieve the same with the film so that, in his words, the "fantasy is more real than reality". Rupert Pupkin has been compared to Travis Bickle in "Taxi Driver": both characters have serious issues with reality testing, that is drawing the line between outer objective and inner subjective reality. In her review, entertainment columnist Marilyn Beck approved Johnny Carson's refusal to participate in "The King of Comedy", supposedly because he feared the film could inspire psychopaths like John Hinckley. Beck considered "The King
Elia Kazan his ability to recognize their personal character traits. Although he didn't know De Niro before this film, for example, Kazan later writes, "Bobby is more meticulous ... he's very imaginative. He's very precise. He figures everything out both inside and outside. He has good emotion. He's a character actor: everything he does he calculates. In a good way, but he calculates." Kazan developed and used those personality traits for his character in the film. Although the film did poorly at the box office, some reviewers praised De Niro's acting. Film critic Marie Brenner writes that "for De Niro, it is