Julian Fellowes' American period drama returns to HBO on Oct. 29.
The raunchy trailer for A24's first movie musical also features Nathan Lane, Megan Mullally and Bowen Yang.
Lane opens up about it to Willie Geist on 'Sunday Today.'
“I wondered if I could shift other people’s perception of me a little,” the actor tells ET.
ET exclusively debuts a first look from Wednesday's milestone episode.