That is why it's best to keep reviews with you and so fort. That way, you can go to another interview, and mention it if such an issue comes up.
However, I very much doubt they'll say anything bad about you if you gave your 2 weeks, and you have a good relationship. However, if you don't, just don't include it in the application. Say you don't wish to include your previous employer, however, you do have some prior reviews.
I also very much doubt about this "blacklist" thing. If you believe in it, then it means you watch too many movies. Real life doesn't really care. If you sound legit, I very much doubt they'll not hire you on the grounds that your previous employer said something bad.
As an example, I once got a job at college and I told them right up front how much I disliked the fact that my prior job changed management and that I didn't have a good relationship with the new manager. He said he'd like to talk to them about it, and he did, and he came back and said I got the job. Also, before that, when I walked out of McDonalds, and worked as a cashier, I told them right up front how much I hated McDonalds and that I walked out on them. They said that's fine. So basically, if you're just honest, they won't care. Just don't make it the main convo when you go to the interview. Just wait until they ask about previous employers and just say where you worked, and the fact that you didn't have a good relationship with them, and you decided to call it quits and look for places elsewhere (just don't say negative things, say what you did like and what you didn't like). If you just say stuff like, "I worked at X place, I did Y," but never mention the problems you had, then when they call, they might hear about it and then they might not hire you on the grounds that you weren't honest with them or that there were more to the problem. They're going to ask if they can call the employer and you just say, "Yeah, but I just want to say that I didn't have a good relationship with them and such and such."