Hi there.

I once saw a movie (Film4 Film) featuring two brothers living in war torn eastern country (yougslav - croatia or other)

One brother became a war general and the other a profiteer,

The general had a marching band following him around all the time.
(this actor was also the Bum / vagrant who takes bruce's coat in Batman Begins)

Please put my out of my mysery.

Dave,

Try here. A list of all the 'Vagrants ' films!!

http://www.imdb.com/name/nm0784884/

Sorry i have seen alot of films in my time but it does not ring a bell

I think I've found the actor you want. Rade Serbedzija. Here's the link to his films on imdb. http://www.imdb.com/name/nm0784884/