A US federal judge has dismissed a lawsuit by Warren Peary, the nephew of Superman co-creator Joseph Shuster, who sought to block the release of a new superhero film due to foreign copyrights. The judge cited lack of jurisdiction over the case and denied Peary’s request for a preliminary injunction, rendering his lawsuit moot.
Source: https://news.bloomberglaw.com/ip-law/dc-comics-warner-brothers-escape-superman-movie-ip-lawsuit