AT THE MOVIES, Damon Wayans cashes in as Mo’ Money (left) racks up $12.4 million and a first-place finish its opening week. ON TV, up to 34 million tune in to the Barcelona Olympics each night and watch America’s pro-basketball Dream Team compete for the first time. IN MUSIC, Sir Mix-A-Lot stands at No. 1 on the Billboard singles chart with his sentimental derriere ditty “Baby Got Back.” AND IN THE NEWS, presidential candidate Bill Clinton goes on the defensive after White House incumbent George Bush suggests the Arkansas governor lacks sufficient foreign policy experience.