Superman II (1980)

Superman agrees to sacrifice his powers to start a relationship with Lois Lane, unaware that three Kryptonian criminals he inadvertently released are conquering Earth. Prior to the destruction of Krypton, the criminals General Zod, Ursa and Non disable a security guard at a crystalline matrix table. The general removes a red spire from the table and destroys it; the thunderclap as the piece is shattered resonates through the city and sets off a trap that ensnares the three brigands. On Earth, in the present day, Clark Kent arrives at the Daily Planet for work...