40 years after its release (and hearing about it) I finally got around to see the movie #Lifeforce (on Amazon Prime) - what a completely insane and crazy SF/horror plot, with great production values, too ... and connected to the apparition of Halley's Comet in 1985/86: https://www.youtube.com/watch?v=R4wSawMMSq4 = the original trailer, https://www.youtube.com/watch?v=VGQpJFKcB3s and https://www.youtube.com/watch?v=bmxN6oeOAHI = excellent video reports about it.