Penn Theater on Main Street will host an original, interactive murder mystery produced in conjunction with the BC3 Pioneer Players theater club on Oct. 14 in the upstairs Bantam Theater. The film starring Diane Lane is based on Frances Mayes' book about her experiences with renovating her summer home in Cortona, Italy. Admission is $4. Call 724-287-7366.

<B>Rangos Omnimax Theater</B> at the Carnegie Science Center on the North Side features "Magnificent Desolation: Walking on the Moon." "Mystery of the Nile" continues. "Pittsburgh's Big Picture," an 8-minute film that highlights the city's assets, is being shown before each feature film through 2005 approximately. Admission varies. Omnimax is not recommended for children younger than 3. Call 412-237-3400.<B>Tuesdays@2</B> free movies will feature the film "The Longest Yard" at 2 p.m. Tuesday in the Kean Theatre at St. Barnabas, Washington Place, 5847 Meridian Road. Future films will be "Kingdom of Heaven" on Oct. 18 and "Bewitched" on Oct. 25. Admission is free, but donations are accepted to benefit the St. Barnabas Free Care Fund. Call 724-444-6288.