Hey.
There are quite a few superhero/villain LPs on this site. It is a good topic, as it can be both fun and provocative. In the PPT, I first inquire of fantasy heroes (names and characteristics), then real life heroes (what made them heroes? and how can a person, who holds down a mundane/typical job, do something extraordinary/ Can we practice Chivalry and heroism today, or is something only of the past?), and last I showed them a picture of the hijackers of 9/11. We talked about how a group of ppl can elevate a person into the status of hero or leader, yet be totally deceived (or even willingly be deceived) by the intentions or pipe dreams they offer. It became a bit of a topic of relativism, and the boundaries between what makes good and evil, or whether they think both are the same. Everything is relative until someone gets hurt! At the end of the lesson, I got them to design their own superheroes. It was bloody hilarious some of the ideas they conjured! They'd take teachers from the school and adapt them nicely into a superhero outfit with a purpose and all.
Overall, it had high success among my students. I did this lesson with all levels, and obviously, the discussion depended on their English ability.