Kay, how about this: NO LOADING SCREEN
...Wuuuut?
Play a random video clip from a batch of a few while loading.
Suggestions:
A fake commercial with a comedic twist.
A real commercial you can make money from.
A video clip that acts as the intro to your game.
An ad for another project of yours.
A tutorial on strategies or how to play. You'll have to maybe make this vague so that people don't see "that same thing each level"
A clip so old that copyrights have expired on it.
Pr0nz - I am kidding about that.
A slide show of cute cats - You can't go wrong there.
...What if people get bored?
Erm, loading bar = more boring.
...How will they know the loading progress?
Place a "Loading... [percent] Complete" text at the bottom of the screen.
When loading is complete, the movie can be skipped. If the movie is completed and loading still busy, play another clip (shouldn't take that long to load though).
Kay, I dunno if this can actually be done natively in FPSC (I hear it supports scripting however I dunno how extensive that scripting is) but I'm sure you can call an external if needs be.
Quote: "This should get your customers EXCITED about your app."
Lol, nice!
[EDIT] Didn't read all the posts properly, ignore anything I mentioned that's been mentioned before [/EDIT]