I haven't seen I.O.U.S.A. yet, but from the online bonus clips, it looks like it could be a good watch for you infographics junkies. The documentary examines the growing national debt and the consequences it will have on its citizens, so the source material sort of lends itself to plummeting time series charts with dramatic flare.
Here's one showing personal savings rate over time:
Deficits and social security over time:
A $53 Trillion Federal Financial Hole:
Those are just the bonus clips. I'm sure there are plenty more in the actual documentary.