This searing movie from Martin Scorcese is one of the great films of the 1970's. It features Robert DeNiro in the role of a lifetime, as ex-Vietnam vet Travis Bickle, who can't sleep and drives a Cab at night as a form of therapy. Travis also has trouble relating to people and it is this that gives him difficulties when he meets Betsy (played wonderfully by Cybill Shepherd) and things go from bad to worse when he then meets Iris (Jodie Foster) a teenage prostitute.... The supporting cast includes Peter Boyle and Harvey Keitel.