Pictured: Jennifer Garner Mandatory Credit ? Erick Kauffman/Broadimage Jennifer Garners goes Trick-or-Treat dressed as a witch in Brentwood 10/31/11, Brentwood, California, United States of America Broadimage Newswire Los Angeles 1+ (310) 301-1027 New York 1+ (646) 827-9134 sales@broadimage.com http://www.broadimage.com