Factual error: When the villain takes the reporter into space (the earth is just a circle off in the distance), then weakens and lets go of her, not only does she start to fall, she starts to fall straight down and has to hang onto him. (Oddly enough, he's not falling). Did somebody inject normal earth gravity into mid-space?
Continuity mistake: Luthor holds a sealed champagne bottle with both hands on the neck of it. He doesn't move them, nor his shoulders, nor do we hear any sound revealing that the bottle's being opened. However, when Luthor leaves, the bottle's seal appears opened and 20 centimeters away when the scene ends.