What is the role of brainiac in man of tomorrow?

In Man of Tomorrow, Brainiac serves as the central villain. The character is portrayed as a superintelligent force that poses a significant threat to Earth. Because of this threat, the film’s protagonists, Superman and Lex Luthor, are compelled to set aside their differences and team up. Lars Eidinger portrays Brainiac, presenting him as an intellectual adversary rather than a purely physical one. The focus on Brainiac’s intelligence and the danger it presents underpins the film’s central conflict and drives the narrative toward a joint effort by the two heroes.