“The Dark Tower” opens on August 4.

Ahead of the debut, star Idris Elba will appear on “The Tonight Show Starring Jimmy Fallon.”

NBC says Elba will be the lead interview guest on the July 31 “Tonight Show.”

The episode will also feature an interview with Ali Wentworth. Tame Impala will close the show with a musical performance.

NBC’s official “Tonight Show” listings follow:

Monday, July 24: Guests include Rob Lowe, Chrissy Metz and musical guest Fifth Harmony featuring Gucci Mane. Show 710

Tuesday, July 25: Guests include Jessica Biel, Matt Bomer and musical guest Kelsea Ballerini. Keith Sweat sits in with The Roots. Show 711

Wednesday, July 26: Guests include John Boyega, Rhett & Link and musical guest Kygo and Ellie Goulding. Show 712

Thursday, July 27: Guests include Michael Strahan, Jill Kargman and musical guest Slayer. Show 713

Friday, July 28: Guests include David Spade, Desus & Mero, and Penn & Teller. Show 714

Monday, July 31: Guests include Idris Elba, Ali Wentworth and musical guest Tame Impala. Show 715