I'm writing a short that revolves heavily around smoking and wondering if I have to use made up brands. Am I allowed to refer to a cigarette as a specific brand as long as I don't feature the logo? You see the major brands all throughout movies, but I'm assuming they get permission to do that, which I cannot afford. If I come up with fake brands, do I have to make sure they absolutely don't already exist? Or can I use the name as long as it doesn't have the same logo? I'd prefer to not use major brands so that it looks like an ad for them, but I don't want them to look like really cheap knock offs, either. So, where's the line in using a company's product without showing the name or logo?