John Natale and Jack German star in “Sons of the Potomac” on Wednesdays throughout April at ImprovBoston in Central Square.

The cinematic trend toward “bromance” reaches the stage at ImprovBoston in Central Square in an unexpected way: marking the 150th anniversary of the Civil War.

“Sons of the Potomac” starts Wednesday, with ImprovBoston Comedy Lab graduates Jack German and John Natale playing friends who find themselves generals on opposite sides of the Union and Confederate struggle, get lost in the woods and exchange insults, battle stories and childhood memories.

Until it arrives, there is a Twitter account (written as a Civil War soldier) to follow and two similar YouTube teasers to enjoy.

The half-hour show is improvised and complemented by audience participation in shorter, Civil War inspired games, said the theater’s publicist, Becky Pineo.

The show starts at 8 p.m. each Wednesday. Tickets are $7, or $5 for students and seniors. The theater is at 40 Prospect St., Central Square, Cambridge. Tickets are available here or by calling (617) 576-1253.

This post was written from a press release.