Warner Bros. has unveiled the first trailer for the thriller Argo [ARGO] based on real event during the Iran hostage crisis in 1979. After Islamist took over the American embassy in Tehran, six Americans escaped and hid in Canadian ambassador's residence. CIA devised a the life-or-death covert operation to rescue them by sneaking them out under the cover of a fictional Hollywood film crew. Ben Afflecl [BAFFL] directs and stars in the film set to open this fall.