The cast of Guy Ritchie’s Fountain of Youth is getting more prominent as Domhnall Gleeson joins John Krasinski and Natalie Portman for the upcoming feature from Apple and Skydance Media. Scream VI writer James Vanderbilt pens this mythological project. It involves “two estranged siblings who partner on a global heist to find the mythological Fountain of Youth. They must use their knowledge of history to follow clues on an epic adventure that will change their lives…and possibly lead to immortality.” Apple, Skydance Media, Vinson Films, and Project X Entertainment will produce the movie. The script was a high priority at Skydance since they received Vanderbilt’s screenplay. It reportedly “blew execs away.” The production company was waiting for the right creative package to come along.

According to Deadline, “Hailing from a first-look partnership between Apple and Skydance Media, Fountain of Youth will be produced by Skydance’s David Ellison,...