Years ago I watched a couple of films that surprised me, because it took a little while to understand or remember the context. Often times the message of a film is in your face the whole time. It wasn't with these two:

Zardoz with Sean Connery. Sex and violence. The thing to remember--it is a farce.

Rollerball with James Caan. The violence is crucial to the film, but it took a while to realize where it was going. Sometimes a man should be an island.

SRS