Conventional wisdom held true on Thursday as the comedic drama “American Hustle,” the space adventure “Gravity” and the searing historical drama “12 Years a Slave” received the most nominations.“American Hustle” received 10 nods, including best director, for David O. Russell, and for three of its actors: Christian Bale (best actor), Amy Adams (best actress) and Jennifer Lawrence (best supporting actress.)“Gravity,” also a best picture nominee, tied with 10, including for best direction and best actress, but more of its overall attention came from lesser categories.