"GIFs [all images] with famous faces

This notion of fair use becomes even more complex when a GIF features a celebrity [movie star like Chris Hemsworth or Nathan Fillion].

Individual celebrities also have the option to invoke so-called “right of publicity” laws that allow public figures to control how their image is used, according to Fortune‘s Jeff John Roberts.

Despite the absence of any clear legal decision on this matter, social media networks have already adopted measures to protect themselves. The Digital Millennium Copyright Act (DCMA) ensures that social media sites who host GIFs are not held responsible as long as they have a system to report and remove content accused of copyright infringement.

For you, this means that the DCMA will hold you liable for sharing copyrighted GIFs, rather than the platform on which you shared it.

Even if you include attribution or a link back to the creator’s website, you can still be held liable for copyright infringement."

https://modicum.agency/blog/animated-gifs-fair-use-copyright-law/