ET spoke to the couple at the Paramount+ upfront event on Wednesday.
'Yellowstone' season five premieres Nov. 13 on the Paramount Network.
It turns out Mirren is the first professional actor Reilly worked with nearly three decades ago.
'1883' stars Tim McGraw and Faith Hill react to the news of Harrison Ford and Hellen Mirren joining the 'Yellowstone' universe.
The veteran actor is teaming up with Taylor Sheridan for a 'Yellowstone' limited series inspired by true events.
Beth Dutton herself, Kelly Reilly, spills a little about what's set to unfold in season 5 of Paramount Network's hit series, 'Yellowsto
Kevin Costner, who plays John Dutton on Paramount Network's hit 'Yellowstone,' hints at what fans can expect from season 5.
Kevin Costner spills on ‘Yellowstone’ universe’s spinoffs at the 94th Oscars, airing Sunday on ABC.
'Yellowstone' stars Luke Grimes and Kelsey Asbille chat with ET at the 2022 ACM Awards about what fans can expect from season 5.
The co-stars and on-screen couple spoke with ET at the 2022 ACM Awards in Las Vegas on Monday.
Kevin Costner tells ET that maybe a twist will be him and his 'Yellowstone' family 'get our sh** together.'
ET chats with Kevin Costner about 'Yellowstone's' upcoming season at the 28th annual SAG awards.
ET chats with the ladies of 'Yellowstone,' who tease the upcoming season at the 28th annual SAG awards.
ET chats with Luke Grimes about ‘Yellowstone’s phenomenal success at the 2022 SAG Awards.
