Doc Levy (Roy Scheider) is an American secret agent who has been running interference between the U.S. government and escaped Nazi war criminal Szell (Laurence Olivier). Believing that Doc has stolen a valuable cache of gems, Szell emerges from his South American hiding place and heads for New York. He has Doc killed, then kidnaps Doc's in-the-dark brother, Babe (Dustin Hoffman). Repeating the phrase "Is it safe?" over and over, Szell, a onetime concentration camp dentist, tries to extract information from Babe by performing sadistic "oral surgery" upon him. Babe, who still doesn't know about the gems, escapes, breaking his own self-imposed rule of nonviolence to defend himself against his pursuers and gearing up for sadistic revenge.~Hal Erickson
Dustin Hoffman and Laurence Olivier are fantastic.
This review is from Marathon Man [Blu-ray] 
I would recommend this to a friend
Rating 5 out of 5 stars with 1 review
"Marathon Man" is a truly great film. I knew nothing about it beforehand except that it had a torture scene involving teeth. The movie goes on for a while before the audience knows exactly what it's about, but it's great when you figure it out. Definitely one of my favorite films of the 1970s and one of Dustin Hoffman's best performances (along with "The Graduate," "All the President's Men" and "Rain Man"). The film is surprisingly violent and is more shocking than most modern films -- it's not too bad, but it was very unexpected. The DVD's two main documentaries are each about half an hour long and are very interesting. Highly recommended.