I read Poul Anderson's book way back in high school in the 1960's. (The pre-computer, pre-Internet, pre-everything Age!.;) The idea that a technologically advanced Alien civilization could be tamed, much less conquered by a "swords-knights-archers" group was intriguing. The War in Vietnam was about to go from "advisors and observers" to "boots on the ground," which resonated with me at the time. I saw this film on DVD and bought it, wondering how this tale played out. The setup was fine, then the spaceship landed at a gate...and went no farther. Did the producers runs out of money or ideas? (...