Vintage original 27x41 in. US one-sheet poster from the popular 1970's action/adventure drama, BEYOND THE POSEIDON ADVENTURE, released in 1979 by Warner Bros. and directed by Irwin Allen. In this sequel to the 1972 smash hit, The Poseidon Adventure, a cache of adventurers return to the overturned ship to seek several fortunes. The cast includes Michael Caine, Sally Field, Telly Savalas, Peter Boyle, Jack Warden, Shirley Knight, Shirley Jones, Karl Malden, and Slim Pickens. The image features terrific artwork designed by Mort Kuntsler and depicts men fighting on the upside-down bottom of the doomed ocean liner while scuba divers seek to enter the ship from another method. Unrestored and folded as originally issued, this vintage original one-sheet poster is in very fine condition with two small diagonal creases on the top right corner. There are no pinholes, tears, stains, or other flaws.