"Is VidAngel Legal?" is indeed an interesting meta-short film "about" legal skullduggery in Hollywood.
The narrative involves a "secret" contract in Hollywood to block all user filtering, which was apparently discovered by North Korea's Sony Pictures hack; there followed Congress's "Family Movie Act" which tried to make the service (for parents to filter objectionable content from movies) legal.
See also my "filering Internet content" blog for coordinated post (see Blogger profile). It's conceivable that VidAngel's legal issues could become relevant in the fight against Section 230 motivated by the Backpage controversy.