http://canonlawblog.wordpress.com/2014/04/17/was-jackie-o-excommunicated/
Interesting, but the good canon lawyer left out one huge possibility; that the marriage was never consummated and was never intended to be.
Many of us thought that Jackie wanted privacy and protection. Ari gave this to her in exchange for a "trophy wife" but, perhaps, not a wife.
Just a possibility which would change the entire argument....