Sci-Fi, Vol. 4: Cosmos - War of the Planets/War of the Robots/Unknown World/The Phantom Planet

"Four public domain science fiction movies -- War of the Planets, War of the Robots, Unknown World, and The Phantom Planet -- are featured on this budget-priced DVD. The titles on Great Sci-Fi Classics, Vol. 4: Cosmos have been transferred to disc in the full-frame aspect ratio of 1.33:1, and the audio for all four is in Dolby Digital Mono. The dialogue on all features is in English, with no multiple language options or bonus materials included."