Sony Pictures says Wednesday that the film has been dated for a theatrical release on Aug. 9, 2019.
Set in 1969 Los Angeles, the project has become widely known as Tarantino's Charles Manson film.
Neither DiCaprio nor Pitt will be playing Manson however. Tarantino says they will play a pair of struggling actors. DiCaprio will appear as former Western TV series star and Pitt as his stunt double. Their characters live next door to Sharon Tate .
A longtime resident of Los Angeles, Tarantino has been working on the script for five years. It will mark his ninth feature.