The current proposal might affect those industries as well as others. When you talk about the cultural sector, copyright issues might have more of a direct impact,which is not the subject of Bill C-31. As for video products and so on, they would be affected more by patent issues.
However, to the extent that all of those businesses, whether they are working in the video field or cultural activities, have trademarks or wish to apply for them, they will be affected in the same way as other businesses.