This review at Big Hollywood has a few spoilers but nails it here:
I Want Your Money does the near-impossible: it makes politics entertaining. The documentary combines historical clips and quotes with interviews of today's conservatives, and lampoons prominent politicians from Nixon to Sarah Palin, Bill Clinton and, of course, President Obama using CGI cartooning. My favorite bit was counting how many times Hillary got to slap a womanizing Bill Clinton. There were many moments where the crowd of about 50 die-hard conservative Tea Party-types laughed out loud. The director Ray Griggs has proved the adage, "you gotta know your audience."
I took my twelve-year-old son to garner his impressions, whether he was bored, etc. In a nutshell, my son thought the movie was entertaining; he really enjoyed the CGI cartoon Reagan v. Obama teachable moments interspersed throughout the talking heads and history clips. After watching the movie, he understood what socialism does: "it drags everybody down."