Veteran actress Amy Smart has taken her first steps into the world of superheroes in “DC’s Stargirl.” The series, airing Tuesdays at 8 p.m. on both The CW and DC Universe — and based on a comic of the same name — follows high school student Courtney Whitmore (Brec Bassinger), who discovers a magic staff …
Luke Wilson has done nearly everything in Hollywood except play a superhero — but with his role in “DC’s Stargirl,” he can now cross that off the list. “I’ve played a police officer, I’ve played a lawyer, I’ve done a few Westerns,” Wilson, 48, tells The Post. “I feel like I’ve gotten to do every …