Lifeforce (1985)

"Lifeforce" is the 1985 sci-fi horror oddity about astronauts who bring a mysterious energy-draining entity back to Earth from a derelict alien craft, unleashing chaos across London. Mathilda May anchors the film as the space vampire at its center, and her introduction remains the reason genre fans still bring this one up decades later. She spends much of her screen time fully naked, an unnervingly calm presence amid the film's escalating madness. The site carries 1 scene from the film, capturing that unforgettable nude entrance in full.