Check out this well-produced video from a Catholic "lay association of the faithful" that claims 100,000 members. It is a project of the Fidelis Center for Law and Policy. Here's a blurb from their "about us" page:
"CatholicVote.org debuted in 2008 with a 3:30 commercial highlighting the Catholic Vote. The film was the most watched political commercial on the Internet with nearly 4 million views. Traffic to the CatholicVote.com website outpaced sites such as Starbucks.com, United.com and Ford.com during October and November 2008."