Popeye and Tintin

Popeye and Tintin are now in the public domain

It's a new year, and that means more works are headed to the public
domain. This year, thousands of copyrighted works created in 1929,
including the earliest versions of Popeye and the Belgian comic book
character Tintin, are now free to reuse and repurpose in the US.

Duke Law School's Center for the Study of Public Domain has once again
rounded up all the most iconic works that have been freed from the
bounds of copyright, which also includes sound recordings from 1924.
As pointed out by Duke Law School, 1929 was a particularly pivotal
year for film, as it was the first with sound.

https://www.theverge.com/2025/1/1/24330191/popeye-tintin-head-2025-public-domain