If you're looking for ways to keep your children entertained this summer, check out the programs offered at the Wilmette Theater. Youngsters of all ages will enjoy the "Sing-Along Mary Poppins" that features a live cast leading the songs. The theater will also present a musical "Jack and the Beanstalk." And if you're children want to get into the act, there are summer acting classes too. Here's a look at what's playing at the historic theater at 1122 Central Ave, Wilmette.