A cinematic 4K video sequence in a dreamlike, ethereal style. It features an ancient, colossal octopus of mythical proportions, its immense body and long, graceful tentacles adorned with intricate bioluminescent patterns, gently emerging from the deep, placid ocean during a serene twilight. The octopus approaches a grand, elegant ocean liner, which shimmers under the soft light. With an intriguing, almost choreographed motion, the octopus's vast tentacles delicately encircle the vessel. As the tentacles touch its hull, the ship undergoes a remarkable, seamless transformation: it gracefully separates into two distinct, symmetrical sections, as if revealing a hidden, pre-designed split. The two pristine halves then drift apart gently on the calm, reflective surface of the water, guided by the creature's serene presence. The scene evokes wonder and a sense of magical interaction, with no signs of distress or damage. Use wide, awe-inspiring camera angles, smooth slow-motion, and soft, ambient lighting to enhance the mystical atmosphere