More like, what idiot would ever sign on for a movie and start trash talking it the first thing they do. Doesn't matter if it's the greatest actor in the world, no one would ever hire him again. Having that said, IMO Mads have a pretty good track record now with the movies he's in.
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Idd 4 had some good moments. I would even say if it was some other IP it would have been seen as a decent movie. Just didn't work with the IJ franchise with it's high bar.
But I do think this one will be good. George isn't writing it now. You can do your own research but Frank Darabont were supposed to write the 4th movie. He had even a script for it that Speilberg really liked. But in the end George said no, wrote his own script and the rest is history. George has a great mind and creativity, but damn he's bad at writing and directing.