Steven Soderbergh's "Magic Mike," starring Channing Tatum as a Tampa stripper, may have been marketed as one big bachelorette party but it also had a serious side. Its youngish hero, Mike Lane, was a working-class peacock discovering that life requires more than just a terrific tail. With its mix of hard bodies and hard truths, "Magic Mike" felt like a new-millennium version of "Saturday Night Fever."