I was surprised to read that critics initially panned this movie.
I saw it on cable and found it amusing, entertaining, touching, inspiring and intellectually stimulating. I was quickly involved in the plot and the off-beat characters and remained engrossed through the end.
Even after the movie was over, I continued to worry a about the fate of some of the characters: What happened to the woman with the fatal ailment? Did she end up telling her husband that she was going to die?
I suspect that one reason that critics underestimated this film is that it is different. For example, the humor is not slapstick or laugh-out-loud hysterical. Instead, it is quirky, droll and subtle.
Another reason that critics may have been put off is the fact that the story seems more appropriate for a stage play rather than for a movie.
The action is mostly confined to the interiors of a series of stuck elevators. Hence, there is not much physical activity. Because the setting is static, the movie, naturally, is talky---something that is not to everyone's taste.
This movie has been under-appreciated. As more people are exposed to it on cable, I suspect that it will grow into a cult classic.