The film business tends to be pretty diplomatic. It’s a collaborative industry, after all, so it doesn’t pay to go around talking trash about colleagues or projects past, present, or future. You never know when you might work with someone again, so a policy of politeness tends to be the best course of action.
Sometimes, though, actors end up in such undeniably bad films that they have no option but to fess up, to acknowledge that they’ve made a bad choice or done a bad job, and live with the consequences.
This can be done in self defence – taking shots at the movie to make it clear that you, too, understand how bad it was – or in a moment of self reflection some time down the line. The problem may be a personal one, an issue with colleagues, or a professional one, simple disappointment.
It’s a risky move – it can be seriously detrimental to your career to go around badmouthing powerful Hollywood movers and shakers – but done right, it can be endearing, a moment of humanity in which to acknowledge that, sometimes, the film business pops out some absolute garbage.