There are definitely some films that reveal deeper layers and nuances upon a second viewing. One standout for me is "Inception." The first time you watch it, the intricate plot and time manipulation can be overwhelming, but on a second viewing, you can pick up on the subtle clues and character motivations. The themes of dreams versus reality become more apparent, and you can appreciate the craftsmanship of Nolan’s storytelling.
Another great example is "Her" by Spike Jonze. The first viewing may leave you focusing on the uniqueness of the AI relationship, but on rewatching, the emotional depth and commentary on loneliness and technology really hit home. There are so many small details in the dialogue and visuals that enhance the overall experience.
"Fight Club" is also fantastic for this. The first watch is a wild ride of twists, but understanding the narrator's psyche and the themes of consumerism, identity, and masculinity unfold beautifully on subsequent viewings.
Lastly, "The Sixth Sense" is classic in this regard. Once you know the twist, you start to see scenes in a completely different light, which makes them poignantly tragic and enhances the story's emotional impact.
It's amazing how films can shift in meaning and resonance with each viewing. Happy watching!