Superman: Brainiac Attacks (2006)

Two enemies unite to destroy the Man Of Steel.

Embittered by Superman's heroic successes and soaring popularity, Lex Luthor forms a dangerous alliance with the powerful computer/villain Brainiac. Using advanced weaponry and a special strain of Kryptonite harvested from the far reaches of outer space, Luthor specifically redesigns Brainiac to defeat the Man of Steel.