January Jones: Sheer Top at 'Sweetwater' Sundance Premiere!
The 35-year-old actress was joined at the premiere by her co-star Jason Isaacs.
Earlier in the week, January and Jason participated in a portrait session together to promote the flick.
Also pictured: January‘s Mad Men on-screen daughter Kiernan Shipka attending the Elle Women in Television Celebration that same evening at the Soho House in West Hollywood, Calif.
FYI: Kiernan is wearing an Oscar de la Renta dress, Rupert Sanderson shoes, and Kwiat jewels.