Leonardo DiCaprio stars with Benicio del Toro, Sean Penn, Regina Hall and Teyana Taylor in 'One Battle After Another,' from director Paul Thomas Anderson. The film is in theaters Sept. 26.

Inspired by Thomas Pynchon's novel Vineland, One Battle After Another stars DiCaprio as Bob Ferguson, an ex-revolutionary who's been out of the game for a while. Case in point? His failure to remember a series of (admittedly convoluted) codes.

Leonardo DiCaprio is a former revolutionary on a search for his daughter in the trailer for writer/director Paul Thomas Anderson's new film "One Battle After Another."