<P> A leading actor, leading actress, star, or simply lead, plays the role of the protagonist of a film or play . The word lead may also refer to the largest role in the piece and leading actor may refer to a person who typically plays such parts or an actor with a respected body of work . Some actors are typecast as leads, but most play the lead in some performances and supporting or character roles in others . </P> <P> Sometimes there is more than one significant leading role in a dramatic piece, and the actors are said to play co-leads; a large supporting role may be considered a secondary lead . Award nominations for acting often reflect such ambiguities . Thus, sometimes two actors in the same performance piece are nominated for Best Actor or Best Actress--categories traditionally reserved for leads . For example, in 1935 Clark Gable, Charles Laughton and Franchot Tone were each nominated for the Best Actor Academy Award for Mutiny on the Bounty . There can even be controversy over whether a particular performance should be nominated in the Best Actor / Actress or Best Supporting Actor / Actress category . </P>

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