I think it's a fascinating sociological/anthropological artifact, but a lousy movie.
Hey, Robbie is having a great time off in his fantasy world. What's he missing out on? An 8:30 to 5:00 job five days out of the week? And on the weekends, spending $4 a gallon at the pump while carrying out his honeydo list and drivng his kids around? Makes me wonder why those kids in the D&D cartoon were so anxious to get back home.But the super downbeat ending...There's really no hope to be found.
I liken it to Jack Chick's Dark Dungeons in purpose. It shows what some people think about our hobby ...
Just to be clear - it is about what some people thought about our hobby, more than 20 years ago. The movie was released in 1982, based on a book from 1981, which was based on a case from 1979...
But worth noting that Dark Dungeons is still published and available.
Jack Chick's personal persistence does not imply anything people in general.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.