Marvel Entertainment’s profits and sales dropped last quarter as the company lingers between big-ticket pics.But execs predicted a stronger-than-anticipated full year 2006 and announced plans for a $100 million stock buyback. Marvel said net income for the first quarter fell 37% to $17.5 million. Revenue dipped 14% to $90 million on a falloff in licensing sales. Toy sales, however, more than doubled to $26.6 million from the previous year. Looking ahead, Marvel upped its full-year earnings guidance to between $40 million and $53 million.