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`Children’s Film Festival: Making a Difference,” a three-week event, will kick off July 12 at the Chicago Historical Society.

Spotlighting kids who make a difference in their communities, the program opens on the 12th with “You Must Remember This” (10 a.m. and 1 p.m.), a 90-minute account of a budding basketball star who discovers that her great-uncle, now a barber, was one of the early great black film directors in the late ’40s.

Subsequently, she helps him to accept his past and unearth a rich cultural legacy.

“Taking Care of Terrific” (58 minutes) and “Molly’s Pilgrim” (24 minutes) will be shown on July 19, both at 10 a.m. and 1 p.m.

In the former, an imaginative teenager, her boyfriend and a little boy team up with a street musician (Melvin van Peebles) to plan an entertaining evening for several bag ladies in the local park.

In “Molly’s Pilgrim,” a 9-year-old Russian-Jewish immigrant girl is taunted by her classmates because of her foreign accent, strange ways and peculiar clothes.

But when the children make dolls for a class display of the first Thanksgiving, Molly’s creation leads the others to understand Molly and her family’s search for religious freedom.

The festival will close on July 26 with “Miracle at Moreaux” (10 a.m. and 1 p.m.), a 60-minute story of a nun (Loretta Swit of “M+A+S+H” fame) and her young charges who risk their lives to protect a group of Jewish children in occupied France during World War II.

The festival is free with regular museum admission. (Suggested admission: $3 for adults, $2 for senior citizens and students aged 17 to 22 with valid school ID; and $1 for children 6 to 17.)

For additional information, call 312-642-4600.