Ancient Greek philosophers like Plato were the first to propose ideas that people have been exploring ever since. From time to time, writers will present an idea that seems original but is a rehash of these old ideas. Writers referred to as postmodernists have explored the meaning of reality in books and movies. Plato also philosophized about reality, most famously in his allegory of the Cave. This allegory can give us a deeper understanding of certain modern (or postmodern) movies about constructed reality, such as The Matrix and Inception. In turn, understanding these movies in a new light can teach us something about our own relationship with reality.