I’ve listened to Max Richter‘s “On The Nature of Daylight” so many times in so many films. The note progression is so slow and meditative you almost forget where it’s begun before it ends. Hard to get a handle grip, but you certainly know it when you hear it. It’s more of a vibe than a “melody.”
Hamnet, Stranger than Fiction, Shutter Island, Disconnect, Arrival, The Last of Us, Call Me By Your Name, etc.