In a new interview with GQ, celebrity trainer Paolo Mascitti is revealing the tips and tricks he used to turn the lean David Corenswet into a jacked, powerhouse ahead of filming on the DCU's Superman.

David Corenswet is playing the lead role in "Superman: Legacy." His trainer told Business Insider they worked together for months to make Corenswet buff, but not too ripped. During the bulking phase, ...

David Corenswet put on 40 pounds for "Superman: Legacy" by eating up to 4,500 calories a day and working out around his busy ...