This 4K Ultra HD thing is complicated. Unlike the upgrade to Blu-ray, the benefits aren't always obvious after you invest in a new TV and a new 4K disc player. Unless the movie is ultra-current and shot with 4K in mind or the original source negatives are absolutely pristine, you might not think the upgrade was worth it.
Director James Mangold's (Cop Land, The Wolverine, Logan) 2007 remake of the classic western 3:10 to Yuma is one of those exceptions. It's a great movie and it's one that benefits from a 4K upgrade and it's available now on 4K Ultra HD Combo Pack (plus Blu-ray and Digital HD).
Russell Crowe and Christian Bale play the roles created by Van Heflin and Glenn Ford in the 1957 original. It's the late 1800s and gang leader Ben Wade (Crowe) has been terrorizing the Southern Railroad with his men. Civil War veteran Dan Evans (Bale) has a failing ranch and agrees to deliver Wade to the train that will take him to prison. Wade's gang is in hot pursuit.
The film is based on an early Elmore Leonard short story and there's an interview with Leonard included in the bonus features. There's also an audio commentary from director Mangold, several featurettes and a Making-of Documentary.