<P> Robbie Clark is a 22 - year - old actor who plays Jack Rollins in the 1965 biographical film Grain of Sand . During filming in Greenwich Village in January 1964, he falls in love with French artist Claire, and they soon marry . Grain of Sand is a hit and Robbie becomes a star, but their relationship is strained and Claire observes Robbie flirting with other women . She is particularly offended when, during an argument in 1968 over whether the evils of the world can be changed, he opines that women can never be poets . Eventually Robbie moves out of their house, then goes to London for four months to film a thriller and has an affair with his female co-star . Richard Nixon's January 1973 announcement of the Paris Peace Accords inspires Claire to ask for a divorce . She gains custody of their two daughters, but allows Robbie to take them on a boating trip . </P> <P> Jude Quinn is a popular former folk singer whose performance with a full band and electric guitars at a New England jazz and folk festival outrages his fans, who accuse him of selling out . Travelling to London, Jude is asked by journalist Keenan Jones if he still cares about people, or thinks folk music has failed to achieve its goals of sociopolitical change . Jude is attacked by a hotel employee, hangs out with The Beatles, encounters his former lover Coco Rivington, and meets poet Allen Ginsberg, who suggests that Jude "sold out to God". Interviewing Jude, Keenan notes that Jude's songs are being used as recruitment tools by the Black Panther Party and opines that Jude refuses to feel deeply about anything while simultaneously being very self - conscious; Jude is offended and walks out of the interview . At a concert performing "Ballad of a Thin Man", Jude is booed and called a "Judas" by the audience . Keenan reveals on television that, despite his claims of a rough - and - tumble vagabond past, Jude is actually Aaron Jacob Edelstein, the suburban, middle - class, educated son of a Brookline, Massachusetts department store owner . Faced with a long string of upcoming European tour dates, Jude spirals into drug use and is killed in a motorcycle accident . </P> <P> Outlaw Billy McCarty, believed to have been killed by Pat Garrett, lives in hiding in rural Riddle, Missouri . Learning that Commissioner Garrett plans to demolish the town to build a highway, which has caused several townspeople to commit suicide, Billy confronts Garrett . Garrett recognizes Billy as the outlaw Billy the Kid and has him thrown in jail . He is broken out by his friend Homer and hops into a boxcar on a passing train, where he finds Woody's guitar . As he rides away, he remarks on the nature of freedom and identity . </P> <P> The film concludes with footage of Dylan playing a harmonica solo during a live performance in 1966 . </P>

Who plays bob in the movie war machine