Dustin Hoffman and Mia Farrow light up the screen in this engaging and subtle film directed by Peter Yates.Based on the novel by Mervyn Jones, John and Mary stars Hoffman as a furniture designer and Farrow as an art gallery assistant who meet in an upscale New York singles bar and go home together. The next day, they individually wander around the city, wondering what their night together might have meant - if anything. Even though both carry over-the-limit baggage from unsuccessful earlier affairs, and both are stocked with enough hang-ups to fill volumes of psychological textbooks, there's still a chance that they'll wind up together at least one more time - and, if nothing else, learn each other's names for the first time!