As many other comments have said, this is a truly moving film. I had a friend who suffered from leukemia, but she didn't make it. All the despair, hope, and courage she displayed is displayed by Campbell Scott.
And Campbell Scott - what an actor, who has never made it "big", but perhaps he doesn't want to. My favorite comment I ever read about him is this: with George C. Scott and Colleen Dewhurst as his parents, this guy could run the Kentucky Derby and win.
Julia Roberts, way before Erin Brockovich, shows compassion and a resilience to helping Vincent. Of course we know that she will eventually fall in love with him, as he does with her.
I like that the movie ends in a "grey" area. We are left to wonder if Vincent makes it and if Hilary stays with him. Truly a well-made film that deserved more notice.