Uploading pictures

Difficult question - my view is that if I own a particular video then I have the right to publish pictures from it, and in the case of web site pictures, these are already in the public domain. I take the line that WrestleWiki is encouraging sales for video production companies by exposing them and their products to an audience who may not already be aware of them. The only exception to this is where I've obtained a photo from another collector in which case I've normally contacted them first, and have then inserted an acknowledgment on the relevant page - see for example LGIS (Old) [[1]].

So that means I can use pictures on websites that are in galleries beside the video but no screenshots from the video itself?