Travis Kelce is already making moves in Hollywood.

Paramount+ flexed the star power of its shows as it prepares to launch in the United Kingdom with a London event attended by Sylvester Stallone, Viola Davis, Kevin Costner, Jessica Chastain and more.

It's betting that consumers are willing to add yet another paid streaming service in an increasingly crowded field. “Paramount+ has a mountain of challenges ahead of it," said Tim Hanlon, CEO of Vertere Group, playing off the Paramount+ tagline, “A mountain of entertainment." CBS All Access, Showtime and BET+ now have nearly 30 million subscribers, some of who will shift to Paramount+. ViacomCBS said some of the studio’s films, including “Mission: Impossible 7” and “A Quiet Place Part II,” will go to its fledgling streaming service, Paramount+, after 45 days in theaters. “If they want to act like a second tier streaming service, they're doing a fantastic job."