There actually is a Stack Exchange community for code reviews: https://codereview.stackexchange.com/

There is a Stack Exchange community for code reviews: https://codereview.stackexchange.com/

However they have some strict rules on what is allowed so it may not be suitable for open source projects. Two problematic ones are: 1) The poster must be the author/owner of the code. You, for example, can't post code that someone else has written. 2) All code that is to be reviewed must be included in the post. You can't just link to a repository.

Has anyone use Google's zx and can say something about it?

"If you have one"? What's the point of that insert?

Don't movies and tv shows commonly use real footage of catastrophes or riots, for example, in news reports or to establish the state of the world?