In this exclusive featurette, the actors open up about working together on the hit musical. 'The Greatest Showman' is now available on Blu-ray, 4K UHD, DVD and VOD.

ET caught up with Efron to talk about his upcoming movie, 'Beach Bum,' where he played a game called 'The Co-Star Smell Test' and revealed that he has a secret crush on his former 'Summerland' co-star, Lori Loughlin.

ET sat down with the actor, who's the face of HUGO Urban Journey by HUGO BOSS, and he dished on his physical transformation to play the serial killer.