Superman IV reference (spoiler)
on imdb trivia it states:
Mr. Glass (Samuel L. Jackson) threatens to blow a few stories off of the brand new "Osaka tower" and cause mass genocide with The Beast (James McAvoy) as his right hand. He uses this to influence David Dunn to break free to stop them. This parallels a classic super villain trope of a veiled master plan. Similarly Lex Luthor (Gene Hackman) fibs about a poison gas pellet he plans on releasing to the public in order to lure Superman (Christopher Reeve) to his hideout in Richard Donner's "Superman: The Movie".
however in Superman IV Lex actually does threaten to blow up several floors of the Metropolis tower like Glass does in this film. and its a ruse to ensnare superman like in Superman The Movie and Dunn in Glass share