This would be a PR nightmare which is why I imagine it hasn’t happened on a mainstream level
But has there been an actor who was interviewed about an upcoming release and they were talking about how great the film will be, why everyone should go see it, how much they enjoyed working on the piece, but then randomly and out of nowhere just started shitting on a co-star?
Like “the film is great but (blank) was horrible. I think everyone will love them film and should go see it as long as they’re able to look past (blank)’s terrible performance