While the movie overall is great, Superman returns has to have the dumbest Lex Luthor of them all.
Not only does he not help to push humanity forward in the slightest, but his goal is to create a landmas of radioactive crystals.
Even if I assume he didn't know they were radioactive (That would still make him stoopid). what exact use do you expect to get from a huge crystal? Because if you think you're going to grow food in there, good fucking luck 
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@LukeAlmighty that movie was literally the most boring anything featuring Superman
@LukeAlmighty Man of Steel and all those movies that followed were almost all pretty mid, for sure, but at least they had some funny moments, like that hilarious and unnecessary neck snap at the end
@tomie That amazing achievement sadly goes to Man of steel.
And I hate to say it, since have a big gay for the Henry, and I am sure, he could have been an amazing Supe if given an actual script.