Now here's a celebrity feud we never saw coming: Seth Rogen and Chloe Grace Moretz, captured on camera trading bitter insults and cruel barbs.
In this video, captured by the BBC, Moretz alleges that Rogen actually has 20/20 vision and only wears his glasses for appearances sake.
Rogen then retaliates by asserting that Moretz has a "butt freshener" (a person named Sharon, to be precise) employed by the studio to deal with Moretz's personal odour issues.
Also, if you hadn't guessed by now, this is all in good fun, and two co-stars were playing a game called "Playground Insults". For more truly juvenile humour, check out the clip below!