Say It Isn't So (2001) 2001, Comedy, Romance, United States Say It Isn’t So (2001) Duration: 1H35M Description: Jo and Gilly date. They find out they’re brother and sister. Jo moves away. Gilly finds out that he’s not Jo’s brother and that Jo’s getting married. Can he stop the wedding in time?.. Trailer ↗ United States 2001 Comedy Romance