Legally Blonde July 28 and 29, 11 a.m. and 7:30 p.m. Lincoln Elementary School auditorium, 161 Mystic Valley Parkway. Winchester Cooperative Theatre presents the hit musical about a determined girl who defies stereotypes to succeed. Tickets $10. Info: winchamb@aol.com.Double feature films July 29, 7 to 11 p.m. Griffin Museum of Photography, 67 Shore Road, Winchester.