This is the part I understand

It seems not to have occurred to anybody in the cited cases that freedom of opinion was repressed in the exertion of the power which was illustrated. The rights of property were only considered as involved.  It cannot be put out of view that the exhibition of motion pictures is a business, pure and simple, originated and conducted for profit, like other spectacles, not to be regarded, nor intended to be regarded by the Ohio Constitution, we think, as part of the press of the country, or as organs of public opinion.  They are mere representations of events, of ideas and sentiments published and known; vivid, useful, and entertaining, no doubt, but, as we have said, capable of evil, having power for it, the greater because of their attractiveness and manner of exhibition.

- Mutual Film Corporation v. Industrial Commission of Ohio, et al.
United States Supreme Court, 23 Februrary 1915