I'm not one of the guys from the podcast, but I have a suggestion.
In my opinion there are really two kinds of games. You have games that are pretty much 100 percent role-playing, and there are games that have a battlemap/board game element. Don't forget that even in traditional "dungeon crawl" D&D, you (the GM) can flesh out the NPCs with your own acting. This can take a traditional battle-map D&D campaign into something more creative.
The first thing that I think that you should decide is what blend of roleplaying vs. board game element that you and your players would like. If you're a bit intimidated by the "film major" side of your group and don't feel comfortable yet with creating plots, building characters/npcs, and navigating life as a DM altogether, then I would suggest finding a system with a lot of printed modules, handouts, and pre-designed campaigns. Just because you didn't write them doesn't mean that they're any less good. TRUST me. I'm prrrrrrrretty sure Ross and the RPPR crowd will have a few SUGGESTIONS on modules.
Some good systems with pre-designed campagins are:
- Dungeons and Dragons (modules galore!)
- Call of Cthulhu (some homemade modules are free all across the internet. Others are very affordable. I would suggest some of these to start the group off due to the number of one or two-shot modules that will get your group used to the games).
- World of Darkness (lots of module support, but not many of the modules you'll find are free)
- I heard a rumor that SOMEONE involved with RPPR writes modules. cough. cough. (D&D/Monsters and Other Childish Things)
- Many, many more. If a game interests you, I would suggest looking to see if there are printed modules to give you a little kick in the ass to get into the swing of things.
(pause as I complain about the Wild scoring a goal on the Phoenix Coyotes)
Also, when in doubt...STEAL. What I mean by this, is that not too many actual movies/books are one hundred percent original ideas. Star Wars itself is a mix of Arthurian legend, Akira Kurosawa Samurai movies, and other assorted influences. Think of stuff that you're REALLY into and draw your influences in your story from there. Just make sure to use your sources as an influence and not a copy. Your characters will know if you're simply re-creating Blade Runner or Showgirls. A good example is that you can totally recreate the feel and drama of the attack on Echo base on Hoth in "The Empire Strikes Back", but done in a zombie survival RPG like "All Flesh Must Be Eaten". The heroes could be the entrenched Rebel Alliance and the murderous gang of outlaws attacking your hideout/supply cache could take the role of the Empire.
Lastly, remember, you're not writing a book or a movie, you're just presenting your gaming table with an evening/campaign of fun. Don't take yourself too seriously and don't let being a GM feel like you're doing a job. You're walking them through a story, and you're the storyteller lording over the campfire