Yellowstone's prequel how officially has a confirmed release date on Paramount+.

1923, starring Helen Mirren and Harrison Ford, will debut on the streaming platform in US and Canada on December 18. Viewers in the UK and Australia can watch it the following day, December 19, while international premiere dates are yet to be announced.

The new series created by Taylor Sheridan follows an older generation of the central Dutton family, here navigating a pandemic, the end of Prohibition and the Great Depression in the American West.

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Related: Yellowstone star teases "killer" story ahead of season 5

Mirren, who will next be seen in Fast X, plays Cara Dutton, while Ford (announced to star in Captain America 4) portrays Jacob Dutton.

The cast is rounded out by Marley Shelton (the Scream franchise) as Emma Dutton, former James Bond star Timothy Dalton as the powerful, wealthy Donald Whitfield, Game of Thrones' Jerome Flynn as sheepmen leader Banner Creighton and Terminator's Robert Patrick as Sheriff William McDowell.

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Brandon Sklenar, Darren Mann, Michelle Randolph, James Badge Dale, Brian Geraghty, Sebastian Roché, Aminah Nieves and Julia Schlaepfer also star.

dame helen mirren
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Related: Yellowstone season 5 is bringing back character following season 3 departure

1923 is the latest spinoff in the Yellowstone universe after prequel 1883 released in February for a ten-episode run. Spinoff 6666, set in present-day Texas, is also in the works.

Meanwhile, the main show will return for a fifth instalment, once again led by Kevin Costner as John Dutton III, the patriarch of the Yellowstone Dutton Ranch in Montana. The cast also includes Luke Grimes, Wes Bentley, Kelly Reilly, Cole Hauser, and Gil Birmingham.

Premiering next month, the new chapter of Yellowstone has teased a deadly showdown between the gang.

1923 will debut on Paramount+ in the US and Canada on December 18, with episodes available to stream the next day in the UK and Australia. Yellowstone season five returns with a two-hour premiere on the same platform on November 13.

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Reporter, Digital Spy

Stefania is a freelance writer specialising in TV and movies. After graduating from City University, London, she covered LGBTQ+ news and pursued a career in entertainment journalism, with her work appearing in outlets including Little White Lies, The Skinny, Radio Times and Digital Spy

Her beats are horror films and period dramas, especially if fronted by queer women. She can argue why Scream is the best slasher in four languages (and a half).