The official opening of is Wednesday, but both the Rave Colonel Glenn 18 and the Riverdale 10 in Little Rock are offering 10 p.m. “sneak previews” of the movie tonight. Regular showtimes start at 11 a.m. at the Rave on Wednesday, and Bryan Singer’s “Superman Returns,” starring Brandon Routh as the Man of Steel, Kate Bosworth as Lois Lane and Kevin Spacey as Lex Luthor, will be shown on the Regal Breckenridge and Lakewood theaters as well.