All audiences love a movie that doesn't just spell things out obviously for them and rewards viewers who actually pay attention to what's taking place on screen. Even so, sometimes filmmakers will intentionally include plot points so subtle and fleeting that, in the thrall of all the action and Hollywood spectacle, it often passes viewers by, whether it's a small visual cue or an overriding theme of the piece. These 12 movies, mostly popular, successful Hollywood flicks, all included some rather mind-blowing reveals that, to most audiences, will go completely unnoticed, all while the director smirks to himself about it. Whether it's a sly set-up for a sequel that's got a little more to it than audiences imagined, a decades-old mystery finally solved, a plot twist hiding in plain sight, or a realisation that completely changes viewer perception of the entire movie, these films all included something awesome that most people just don't know about. So sit back, take a look, and prepare to wow your friends the next time you're watching these movies: you won't see them quite the same away ever again, and your buddies will think you're the Rain Man of film fandom. Here are 12 subtle movie plot points you probably overlooked.