we are, we are ♪ ♪ the world is ours you know them as some of your favorite heros, super heros. and some of the most exciting action packed movie franchises of all times. but behind the scenes, these super heros have heros of their own and important causes this like to support. >> it's important to let people know they're not alone. >> these actors are on the lines of some big battles of domestic disease and poverty. >> you can start from such a small idea and make large changes. >> and whether it comes from a genuine desire to make the world a better place or from a personal experience -- >> me and my mom have a really, really strong connection. >> these three stars are using