In my sunroom we have a brick wall that has been painted. How do I remove the paint partially so that it looks old and weathered?

Removing paint from brick?? arrgggg. Next to impossible, because the brick is so very pourous. BUT, you may be able to get just enough off to look old. Probably have to go with paint stripper. IT won't get it all off, but should help get off some. That's all I can think of. I'm good at putting the paint on, but taking it off can be the challenge.