Sidney Lumet's masterpiece Serpico released in 1973 is one of the most iconic movies of the 70s. Featuring a career-defining performance by Al Pacino in the title role, it's a superb neo noir encapsulating the post-Watergate mood of the early 70s. The film's soundtrack by Mikis Theodorakis is equally stunning. Composed by Greek musician and arranged by cult jazz pianist Bob James, it is a superb blend of funky instrumental and traditional melodies reminding The Godfather OST.