A scan of the upcoming issue of seinen magazine Monthly Action, to be released on April 25, revealed that Orange will be getting a live-action movie adaptation. The movie is set to premiere in December 2015.

Orange is written and illustrated by Ichigo Takano. It was first serialized in Shueisha's Bessatsu Margaret magazine in 2012. The manga went on hiatus for almost a year but later moved and resumed serialization in Futabasha's Monthly Action magazine. The fourth volume, which was released on February 20, ranked 21st in Oricon's weekly manga rankings chart. Crunchyroll is also publishing the manga in English online.

Synopsis
One day, Naho Takamiya receives a letter written to herself from ten years in the future. As Naho reads on, the letter recites the exact events of the day, including the transfer of a new student into her class named Kakeru Naruse.

The Naho from ten years later repeatedly states that she has many regrets, and she wants to fix these by making sure the Naho from the past can make the right decisions—especially regarding Kakeru. What's more shocking is that she discovers that ten years later, Kakeru will no longer be with them. The future Naho asks her to watch over him closely. (Source: Day of the River)

Source: Scan via ANN