Among the 160-plus nominees who attended Monday's event were Jessica Chastain, Jennifer Lawrence, Quvenzhane Wallis, Naomi Watts, Bradley Cooper, Daniel Day-Lewis, Hugh Jackman, Joaquin Phoenix and Denzel Washington.
Oscars for outstanding film achievements of 2012 will be presented Feb. 24 at the Dolby Theatre at Hollywood & Highland Center in Los Angeles.
Seth MacFarlane is to serve as host of the ceremony.
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