For a low budget production it is very good an entertaining.It had invoked a special affects organization that would eventually become big.It was independently done.Eventually universal agreed to get involved in it .At the time in 1983 I knew that the 3D would die .I took advantage of all the 3d movies in the theater .I saw this.The making of the film on the Blu- ray disc two,flat, stated a 3D version of the trailer was shown before the Jaws 3d.I remember at the martin twin theater that no trailer was shown..The production was stopped ,because the producer ran out of money and had to go to the Cannes Film festival to sell the movie.Earlier to sell the movie a white lie was produced to going an illusion that it was already being made to get the money.The character in the film ,the ranger Jeffrey Byron as Dogen,I thought he might have been born the same year I was ,but actually was born the same year my brother was born.Tim Thomerson puts on a very good impersonation of Harrison Ford's Han Solo, but he is a good actor.I don't know why Kelly Preston did not get invoked in the interview ,she still does movies today.Jared son,played by R.David Smith ,who plays his son, looks a lot older than Jared and talk telepathically and has one arm,while the other arm is robotic. It was made during the time of the mad max film ,which has been remade.The 3D was good .It was restored by shout Factory.The title was criticized by those who where involved in the production cause Jared never is destroyed .He escapes in a dark hole of the crystal ,as Dogen chases him with flying motorcycles.It give a false impression that there is going to be made a sequel.Maybe a sequel should be made.I'll tell you one thing the recent star wars on Blu- ray is phony 3D and the new theatrical version is probably the same thing,but this movie was actually shot in 3D.Good entertainment 12/28/16
