I got the impression that the plague arc early in the show was an adaptation of the film — sharing several key characters — but the rest of it was not covered b

I got the impression that the plague arc early in the show was an adaptation of the film — sharing several key characters — but the rest of it was not covered by the film. And if you watch the last season of the series, you get to see an adaptation of the ending of the movie. Anyways, I think the series was excellent, even on its own.