Gael García Bernal Caught Up in Paternity Drama
http://celebritygossipdotcom.blogspot.com/2010/02/gael-garcia-bernal-c aught-up-in.html
shareAccording to that article, it looks like the rumours that another man fathered his girlfriend's child are untrue.
Still, cases like this are a reminder that it's best to be married to someone before having a child with them so that you have a stable relationship and are more likely to know the paternity of your child.