Former "Ally McBeal" star Calista Flockhart spends some time with her son while boyfriend Harrison Ford is busy attending talk shows and press junkets to promote his latest flick, "Hollywood Homicide." Calista was seen going for the run by Hudson River, after which she met unidentified friends and, later, a babysitter with her 2 1/2 year-old son Liam. Calista and Liam looked like they were Schwarzenegger and DeVito in 1988 "Twins" -- wearing matching grey sweatshirts and blue pants, making strikingly similar moves and funny faces. After spending nearly three hours at a playground, Calista and Liam walked back home, which was about fifteen street blocks away. Liam's babysitter just pushed an empty stroller all the way back home. New York, June 13, 2003. Please byline: NY Photo Press. ..*PAY-PER-USE* ....NY Photo Press: ..phone (646) 267-6913; ..e-mail: info@nyphotopress.com