The film will be written by Scott Alexander and Larry Karaszewski (The People v. O.J.

Simpson: American Crime Story).

Hill and Matt Dines are producing through their Strong Baby production company.

Jonah Hill, Jerry Garcia

Jonah Hill, left, will play Grateful Dead bandleader Jerry Garcia in Martin Scorsese’s movie.Frazer Harrison/Getty Images; Tim Mosenfelder/Getty Images

Their involvement means that the film will have access to the band’s extensive catalogue of music.

There will beno need for “Jackie Jormp-Jomp” style paraphraseshere.

Scorsese previously produced the four-hour 2017 documentaryLong Strange Tripabout the Grateful Dead.