Wow, this is way more of a response than I expected. Thanks to everyone.

To be more specific with the assignment, I am in a group with 5 other people. We have to give an approximately 30 minute presentation to the class. I haven't met with the group yet, so I don't know what their ideas are. I was thinking of showing the beginning scene in "Casino" where we the count room and the brief case being flown to Kansas City.

If I wanted to focus on a few mob figures/families that had the most involvment in Las Vegas, who exactly would they be?