LOS ANGELES (Reuters) – -Will Smith won his first Academy Award on Sunday, moments after a stunning incident in which he smacked presenter Chris Rock on stage for making a joke about his wife and twice shouted a vulgarity. Smith captured the best actor honor for his portrayal of Richard Williams, the determined father who raised tennis champions Venus and Serena Williams, in “King Richard.” Smith, 53, one of Hollywood’s most bankable stars, had been nominated twice before, for 2001’s “Ali” and 2006 movie “The Pursuit of Happyness.” “I want to apologize to the Academy. I want to apologize to al…