According to the cover note of the novel volume 4, Honda Tohru's light novel "Light Novel no Tanoshii Kakikata" was announced to get a movie adaptation. It's unknown the movie is live action or anime.
LanoTano novel official website
Atae Yakumo, a high school boy, happens to know a secret of his beautiful classmate Yabusame Tsurugi: she is a newface light novel author. Yakumo tries to help her get out of a slump.
Source: Scan of the cover note
Updated on Sep 16th[/url]
According to the official website, it's a live action movie. The detail will be announced at the beginning of October.
Source: Ranobe official website