How do you reveal your antagonist's evil scheme?

While the narrative is following the hero, there's another story going on - the villain is planning his own evil scheme. We cut away from the main story to see the villain talking to his henchmen and exposing his plans to the viewer, and then cut back to the hero. You see it all the time. I was wondering: what are some screenplays that does this very effectively? I'm planning on doing this same thing in my script and I don't want it to come across as information dump or boring small talk.

Thanks for throwing any examples my way.