It did eventually did get a series, although I guess the series was let down and there are people who wish it had been ignored a little longer.

It's absolutely a classic though. It's a shame that the genre isn't as popular as it used to be.

The series was so bad that Disney took it down from their streaming service.

It did get on a bunch of "most watched" lists, and it wasn't grimdark like all fantasy needs to be nowadays.

I'd argue it's much easier to make an iconic movie (you shoot and statistically at some point you hit) than a good series based on it (you already have the expectations set high, you need to surprise so as not to bore but keep consistency with the overall mood etc. - a very demanding task).