Lopez's manager Benny Medina is said to have confirmed the news in an interview with Extra TV.
"The film will chronicle the last few years in Jennifer's life as she faced big changes," said Medina. "Her instinct is to get right back up, go on the road and 'dance again'."
Filming for Dance Again is said to be taking place during the 43-year-old singer's tour of the same name, the European leg of which begins in September.
Lopez recently described music as "her first love" and quit her role as a judge on American Idol, citing her desire to continue with her career as a performer.
She was replaced by Mariah Carey, who begins filming for the show this autumn.
Watch the video for Jennifer Lopez's 'Dance Again' below: