One of the most bankable buddy movies in recent years, "Tango and Cash," a cop drama that copies the "Lethal Weapon" formula, zoomed up to No. 4 on the Billboard magazine chart in just two weeks. Starring Sylvester Stallone and Kurt Russell, it grossed nearly $61.7 million at the box office. The reviews were scathing but, when it comes to cop/action movies, neither moviegoers nor renters pay any attention to critics. In the next few weeks, "Tango and Cash" may rise up four places and rule the rental roost. Eddie Murphy's "Harlem Nights," a box-office disappointment, finally crept into the rental Top Five, at No. 5, after nearly two months on the market--an unimpressive chart performance for a Murphy movie. The acclaimed documentary "Roger and Me" jumped from No. 38 to No. 21.