According to Variety, Zac Efron is in talks to join Jackman in The Greatest Showman on Earth, which centers on Barnum's creation of the three-ring Barnum & Bailey circus. In the late 19th century Barnum was known largely as a promoter of celebrity hoaxes, and used his talent for fooling the public into the building of what he called "the greatest show on Earth" with acts such as dwarf General Tom Thumb and Swedish opera singer Jenny Lind.
Jenny Bicks (Sex and the City) wrote the script for Michael Gracey to direct. Expect plenty of musical numbers, too, which should be amazing with Jackman and Efron performing them. Last we heard the film was going to shoot this summer but that's obviously not going to happen. Don't expect Fox to wait too long after Jackman finishes shooting The Wolverine 3, though. Efron will be seen next in the R-rated comedy Mike and Dave Need Wedding Dates and has Baywatch arriving next year.