20th Century Fox has released a trailer for the biographical musical "The Greatest Showman," which revolves around the life of circus founder P.T. Barnum - played by Hugh Jackman. Set in the 1800s, the film features contemporary music by Oscar-winning songwriters Benj Pasek and Justin Paul, who wrote the lyrics for "La La Land"'s award-winning score by Justin Hurwitz. In addition to starring, Jackman also served as one of the film producers.