"Deservedly so. I mean it took £800 million, so the kicking didn’t matter, but it was sort of overstuffed," the actor, who played Alfred Pennyworth, told Event Magazine. "It was very muddled. I think the next one will be simpler. The script is certainly a lot smaller, it’s more linear."
It's unclear whether Irons was referring to "Justice League: Part One," in which he's already confirmed to appear, or the planned Batman solo movie, written and directed by Ben Affleck, who'll also reprise his role as Bruce Wayne.