Director Martin Scorsese’s “savage, many-headed dragon of the American New Wave” (Michael Atkinson, The Village Voice) is still as potent as ever. Cabbie Travis Bickle (Robert De Niro’s seminal pistol-packing, insomniac loner) drives through the open sewer that is mid-1970s Manhattan with its pimps (Harvey Keitel), hookers (Jodie Foster), politicos (Cybill Shepherd and Albert Brooks) and other scummy creatures of the neon wilderness. With a ferocious script by Paul Schrader.