In 2005, Marilyn Agreno made the critically acclaimed documentary Mad Hot Ballroom (2005), in which she showed us the reality of dance classes in public elementary schools in New York City, In this way, it expresses the carefree and carefree lives of workers and immigrant children of different colors. After that, she also participated in the filming of a documentary called "Reel American Youth". Although there are not many films made so far, the director has also shown a strong interest in films about the growth of young people. In 2010, she continued her exploration and thinking in this field, and together with Jessica Marie Alba , who is often sexy, she presented the touching story "An Invisible Sign" (2010), which shows a female math teacher educating students to face life. , and the film's story is adapted from The United States of America writer Aimee Bender's novel. On the whole, this movie, which is created by women in its original work, director and starring roles, will present a female film that expresses the growth experience of women while expressing the stories of young people.
Before the official start of filming, Marilyn Agreno found a high school in New York City 's Jefferson Station Pier and conducted a trial shooting there, initially exploring the background of high school life similar to the film's background. It can be seen that she still maintains the rigorous style of filming documentaries. And "An Invisible Sign", as its first feature-length feature film, has been filmed in a relaxed and warm atmosphere without too much media spotlight, and was filmed at the 18th Hamptons International Film on October 7, 2010. Festival premiere. It can be said that despite the participation of Alba, the whole film from the preparation to the filming to the final release is very low-key, which also makes people to the media promoted as " A Beautiful Mind " (2001) add""(1995)" the final release of the film is full of curiosity.
