(2004) : While focused on memory erasure, the film takes place largely inside the protagonist's mind. As memories are deleted, he navigates a collapsing mental landscape that feels indistinguishable from a lucid dream. Waking Life
A classic where Dorothy's magical adventure in Oz is framed as a vivid dream following an injury [13]. Shutter Island
When a couple erases each other from their memories, they relive their relationship inside dreamlike subconscious sequences. The question isn't just dream or real — but whether love matters if it only exists in memory.