"It was very muddled," Irons said to the Daily Mail about the Batman v Superman: Dawn Of Justice plot.
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"I think the next one will be simpler. The script is certainly a lot smaller, it's more linear."
Not that he's too worried about the script.
"I'm tied into The Batman at the minute," Irons said, "which is nice because it's a bit of income..."
"Not that I need a bit of income but it's nice to keep ticking over."
What critics had to say about Batman v Superman: Dawn Of Justice:
• "A ponderous, smothering, over-pixelated zeppelin crash of a movie scored by a choir that sounds like it's being drowned in lava." - NPR
• "The film might be pretty to look at, but narratively speaking, it is a disaster." - Globe and Mail
• "Underdeveloped, overlong and stupendously dispiriting." - Wall Street Journal
• "The studio has, in the usual way, begged and bullied critics not to reveal plot points, and I wouldn't dream of denying you the thrill of discovering just how overstuffed and preposterous a movie narrative can be." - New York Times