"Green Book" is a 2018 film directed by Peter Farrelly that tells the true story of an unlikely friendship between Tony Lip, a working-class Italian-American, and Dr. Don Shirley, an African-American classical pianist. Set in the 1960s, the film follows their journey through the racially segregated American South as they embark on a concert tour. The title refers to the Green Book, a travel guide that provided information on safe places for African Americans to stay and eat during the era of segregation. The film explores themes of racism, friendship, and personal growth, ultimately highlighting the importance of understanding and acceptance across cultural divides.