'The Complete Adventures of Flash Gordon,' a new DVD set, features three films. One of George Lucas' major influences for "Star Wars" was the classic movie serial "Flash Gordon," starring Olympic swimming champion Larry "Buster" Crabbe in the title role. Alex Raymond's sci-fi comic strip began in 1934 and two years later, Universal premiered "Flash Gordon: Space Soldiers," a 13-part serial that introduced the intergalactic hero Flash, his girlfriend Dale Arden (Jean Rogers) and the dastardly Ming the Merciless (Charles B. Middleton). The series was so popular it spawned 1938's "Flash Gordon's Trip to Mars" and 1940's "Flash Gordon Conquers the Universe." This Tuesday, Image is releasing all three on the DVD set, "The Complete Adventures of Flash Gordon."