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STORY: Iran hostage drama "Argo" won the Oscar for Best Film on Sunday, the top prize at the movie industry's most coveted awards, beating rival "Lincoln."
In a unlikely celebrity cameo at the Oscars ceremony, U.S. first lady Michelle Obama delivered the winner directly from the White House, in a live feed which was played out to the audience at the Dolby Theatre in Hollywood.
The thriller, which is based on a true story, recounts a CIA mission to rescue six American diplomats from Iran after the 1979 Islamic Revolution, under the cover of making a fake Hollywood film.
"Argo" was voted Best Film on Sunday after winning a slew of other Hollywood awards despite its director, Ben Affleck, being left off the Academy Award directing shortlist.
