Unfortunately, for me, the unexplained time-travel paradoxes in the ending lowered my enjoyment, even though it was no worse than the inexplicable paradoxes in so many other stories.
Parts of Philip K. Dick’s original story are gone, such as the original ending, which must have been corny even in 1953; and part of the ambiguous revised plotline can be interpreted as time travel, although I suspect that adapter/director David Farr had a different meaning in mind. Regardless, I found Farr’s characters moving.