Julia Roberts opens up about why she wanted to tell Martha Mitchell's side of the Watergate story now with "Gaslit." Plus, she reflects on working with Sean Penn and their slapping scene.

The Jess Cagle Podcast with Julia Cunningham is a weekly podcast and an extension of SiriusXM’s The Jess Cagle Show, which has become the premiere spot for the biggest names in Hollywood. You can hear the live show every weekday from 11 a.m. PT to 1 p.m. PT on SiriusXM Stars.

Follow Jess Cagle on Instagram

Follow Jess Cagle on Twitter

Follow Julia Cunningham on Instagram

Follow Julia Cunningham on Twitter