Calista Flockhart and her 7 1/2-year-old son Liam were at the P.S. ARTS “Express Yourself 2008″ event in Santa Monica on Sunday.
The 44-year-old actress is the national spokesperson for Peace Over Violence. Her partner is Harrison Ford and together they raise Liam, whom she adopted as a newborn in 2001. During 2008, the threesome spent the summer in Alaska.