What's a Movie That Fully Went Over Your Head When You Were Young

I watched this Bollywood movie when I was younger called: Laaga Chunari Mein Daag.

I was a kid, mind you, so I thought this movie was about a lady who was a spy going undercover. It turns out, after watching it recently, that it is, in fact, about a woman who becomes a prostitute to help her family.

So… what's a movie that went over your head when you were younger?