He may not have written a break-up anthem in honor of his split from Taylor Swift, but Harry Styles reportedly goes off on the singer in One Direction: This is Us, the upcoming documentary that takes fans behind the scenes with this British boy band.
According to Daily Mail sources, Styles refers to Swift as a "pain in the arse" at one point in the movie.
Harry and Taylor dated for a few months near the end of 2012.
The basis for their split was never fully explained, although some insiders allege Swift was too prude for the male artist's taste.
"I haven't met a girl yet who I'd want to even think of getting serious with," Styles says in the film. "I'm longing to meet someone who really inspires me and makes me really want to spend time with them."
The One Direction movie - which follows the band on tour, similar to the wildly successful Justin Bieber documentary "Never Say Never" - comes out August 30.
We have a feeling ticket sales will not be soft.