Jon Hamm Crashes A 'Trainwreck' Publicity Interview, Pretends To Be Bill Hader

Don Draper stole another man's identity. Again. 

Professional charming man Jon Hamm gave a very convincing Bill Hader impression during a recent stop on the "Trainwreck" publicity tour. Hamm and Amy Schumer chatted with "Extra" interviewer Terri Seymour about their electric on-set sexual chemistry -- before Hader arrived to confront the imposter.

Though Hamm gave his best Bill Hader-as-Vincent Price, he was no match for the master impressionist.

"Trainwreck" opens in wide release on July 17.

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