Solaris
This film follows the character Kris Kelvin as he is on a spaceship that's orbiting a sentient planet. Somehow, the planet is able to tap into his memories and create false realities. At the end of the film, Kris reunites with his father and everything is "perfect." According to the director, he's actually still on Solaris and chose to be in a false reality instead of the harsh, real one.