Shellshock Rock.

John T. Davis’ first in a trilogy of films (including Protex Hurrah (1980) and Self-Conscious Over You (1981)) exploring the Belfast filmmaker’s local subculture and American cultural influence. It provides a look at the burgeoning punk scene in Northern Ireland, featuring early footage of bands such as Stiff Little Fingers, The Undertones, Protex, The Outcasts, and Rhesus Negative, among others. (from: http://artistsspace.org/programs/shellshock-rock/)