In a photo taken Dec. 21, 2009, Michael J. Fox, wife Tracy Pollan and their children Esme, Schuyler, Aquinnah and Sam, pose in Walt Disney

In a photo taken Dec. 21, 2009, Michael J. Fox, wife Tracy Pollan and their children Esme, Schuyler, Aquinnah and Sam, pose in Walt Disney

In a photo taken Dec. 21, 2009, Michael J. Fox, wife Tracy Pollan and their children Esme, Schuyler, Aquinnah and Sam, pose in Walt Disney