This Film Is Not Yet Rated, released in 2006, is a compelling and hard-hitting documentary that brings to light some interesting and little-known facts about the American film rating system. Directed by renowned filmmaker Kirby Dick, this documentary sets out to investigate the concealed and highly secretive system of the Motion Picture Association of America's (MPAA) film ratings.

The film primarily aims to scrutinize the hidden method behind the operations of this ratings board and how they ultimately decide which films are appropriate for which audiences. This leads to a fascinating exploration of the cinematic world and how it is affected by institutionalized attitudes and the pressures exerted by different socio-political and media forces.

Kirby Dick, who is also the movie's narrator, creates an engaging narrative using interviews, archival footage, and his own investigatory work. He brings together the film industry's most cutting-edge directors, such as Kimberly Peirce and Darren Aronofsky, independent filmmakers, and critics, each who bring their unique insights and experiences to the table. Their anecdotes illustrate the struggles of making a movie within the confines of a rating system and how this system impacts creative freedom and the integrity of their work.

The documentary exposes the MPAA rating system's biases and its seemingly arbitrary decisions. For instance, it delves into disparagements between how the board views sex and violence, where the MPAA often receives criticism for its subjective and inconsistent rulings. The documentary also highlights the system's alleged biases regarding scenes of homosexual versus heterosexual content, questioning the unjust double standards.

Furthermore, the film examines how the MPAA rating practices could influence a movie's box-office performance. The process of applying ratings is explored in depth, with a focus on the decision-making principles underlying the 'G', 'PG', 'PG-13', 'R', and 'NC-17' ratings. It suggests that the board is more lenient towards major film studios and more strict towards independent filmmakers. The documentary explores this alleged favoritism and the potential financial and artistic implications, which are ultimately consequential to filmmakers and audiences alike.

In a dramatic attempt to understand the enigmatic rating system firsthand, Kirby Dick hires a private investigator to identify the anonymous movie raters, whose identities and qualifications have been a fiercely guarded secret since the MPAA's inception. This daring investigative process yields some shocking discoveries that add to the overall intrigue and tension of the film.

Kirby Dick's brave and provocative approach, coupled with his engaging storytelling, creates a meaningful and enlightening documentary. Using humor and irony, he masterfully dissects a hidden process that significantly influences the nature of the movies we watch. Given its inherent conflict with freedom of expression and potential repercussions on the viewer's perspective, it’s a topic deserving of such insightful investigation.

Though it is a documentary, This Film Is Not Yet Rated plays out like a mystery or thriller, with tension steadily building as the audience follows Dick's determined efforts to break through the MPAA's shroud of secrecy and control. The memorable interviews and piercing observations provide a candid look into a part of the film industry that has a significant yet underappreciated impact on American culture and discourse.

Here, the title itself, This Film Is Not Yet Rated, is an ironic commentary, as the documentary is itself given an NC-17 rating by the MPAA, highlighting the very issues it addresses.

In the end, This Film Is Not Yet Rated, is essential viewing for those passionate about film, exploring the balance between artistic integrity and censorship. It questions the fairness and transparency of the rating process, which without doubt, shapes what we see on our screens. It poses provocative questions about freedom of expression, arbitrary standards, and the invisible impacts that such a powerful and secretive organization can have on our understanding and consumption of cinema. This documentary will markedly change how you watch and understand movies.