Art in Bloom
"In the Garden" features art inspired by gardens and created by 14 area artists. The show includes watercolors, etchings, fused glass, basketry and stained glass. 11 a.m.-5 p.m. daily, through Aug. 1. Artists' Undertaking Gallery, 309 Mill St., Occoquan. Free. 703-494-0584.
A Screen Gem
Bring a picnic and a blanket for a showing of "Mister Roberts," starring Henry Fonda, Jack Lemmon and James Cagney. 8:30 p.m. Friday, on the lawn of the Manassas Museum, 9101 Prince William St., Manassas. Free. 703-368-1873.
'The Rimers of Eldritch'
The NoVa Woodbridge Theatre Group performs a story about dysfunctional characters dealing with the murder of one of their own in a dying Midwestern town. 7:30 p.m. Tuesday, Wednesday and July 14-16, and 2 p.m. July 16. Northern Virginia Community College Theater, 15200 Neabsco Mills Rd., Woodbridge. $4-$6 donation suggested. 703-878-5750.
The U.S. Army Orchestra performs favorites for young and old. 7-9 p.m., Loy E. Harris Pavilion, West and Center streets, Old Town Manassas. Free. 703-361-9800 or www.harrispavilion.com.