the system places too much emphasis on sex, while allowing the portrayal of massive amounts of gruesome violence. The uneven emphasis on sex versus violence is echoed by other critics, including David Ansen, as well as many filmmakers. Moreover, Ebert argued that the rating system is geared toward looking at trivial aspects of the film (such as the number of times a profane word is used) rather than at the general theme of the film (for example, if the film realistically depicts the consequences of sex and violence). He called for an A (adults only) rating, to indicate films high in violence or mature content that should not be marketed to teenagers, but do not have NC-17 levels of sex. He also called for the NC-17 rating to be removed and to have the X rating revived. He felt that everyone understood what X-rated means, while fewer people understood what NC-17 meant. MPAA chairman Dan Glickman has disputed these claims, stating that far more films are initially rated NC-17 for violence than for sex, but that these are later edited by studios to receive an R rating. Despite this, an internal critic of the early workings of the ratings system is film critic and writer Stephen Farber, who was a CARA intern for six months during 1969 and 1970. In The Movie Ratings Game, he documents a prejudice against sex in relation to violence. The 2006 documentary This Film Is Not Yet Rated also points out that four times as many films received an NC-17 rating for sex as they did for violence according to the MPAA's own website, further mentioning a bias against homosexual content compared to heterosexual content, particularly with regards to sex scenes. Filmmaker Darren Stein further insists that his tame teen comedy G.B.F., which features multiple same-sex kisses but no intercourse, strong language, violence, or nudity, was "rated R for being gay." The 2011 documentary Bully received an R rating for the profanity contained within the film, which prevented most of the intended audience, middle and high schoolers, from seeing the film. The film's director, Lee Hirsch, has refused to recut the film, stating, "I feel a responsibility as a filmmaker, as the person entrusted to tell (these kids') stories, to not water them down." A petition collected more than 200,000 signatures to change the film's rating and a version with less profanity was finally given