"Boyhood" took 12 years to film because director Richard Linklater wanted to authentically capture the passage of time and the growth of its lead actor, Ellar Coltrane, who plays Mason. By filming over a dozen years, Linklater was able to depict the character's development from childhood to young adulthood in a realistic way. The project involved annual filming sessions where the cast would age naturally, allowing for a unique and genuine exploration of life's stages, relationships, and experiences.

"Boyhood" is rated R primarily for its language, which includes frequent strong language and some sexual content. The film also addresses mature themes such as family dynamics, adolescence, and the complexities of growing up. Additionally, there are instances of substance use and discussions of relationships that contribute to its rating. The R rating reflects the film's realistic portrayal of life's challenges and experiences, making it suitable for mature audiences.

"Boyhood" is not a true story in the traditional sense, but it is a semi-autobiographical film. Directed by Richard Linklater, it was filmed over 12 years with the same cast, following the life of a boy named Mason from childhood to young adulthood. While the characters and events are fictional, they reflect real-life experiences and the passage of time, capturing the essence of growing up. Linklater drew from his own life and observations, making the film resonate with authenticity and relatable themes.

"Boyhood," directed by Richard Linklater, is a coming-of-age film that chronicles the life of a boy named Mason from childhood to young adulthood, filmed over 12 years with the same cast. The point of the movie is to explore the passage of time and the nuances of growing up, highlighting the ordinary moments and experiences that shape a person's identity. It emphasizes the complexities of family dynamics, relationships, and the impact of life’s small, seemingly mundane moments, ultimately reflecting on the beauty and challenges of life itself.