Helmed by Rob Reiner and starring Woody Harrelson as eponymous president, Joey Hartstone's script depicts Johnson assuming the office in the wake of President John F Kennedy's assassination in 1963 and the uneasy political scene of the time, through his signing the Civil Rights Act.
Richard Jenkins and Bill Pullman are also in the film. Production is slated to begin next month in Texas, reported Entertainment Weekly.
First Lady Jackie Kennedy was in the car when her husband,
Allen, 33, has a small resume to date. She led the Oscar-winning short film "Curfew" and appeared in one episode of "The Carrie Diaries" in 2013.