The "Star Wars" Imperial March is a song that plays when "Darth Vader or other dark forces enter a scene," the lawsuit said.

A Washington, D.C., resident who protested while playing the “Imperial March” theme from “Star Wars” sued members of the National Guard and the city’s police force in federal court on Thursday, argui...

“The law might have tolerated government conduct of this sort a long time ago in a galaxy far, far away,” the suit states, quoting Star Wars.