Yes. They host thousands of public domain films, including Steamboat Willie (1928), The Adventures of Prince Achmed (1926), and many old cartoons. Also, independent animators sometimes release films under Creative Commons licenses.
The Internet Archive is a non-profit digital library offering free public access to a massive repository of texts, audio recordings, moving images, software, and archived web pages. However, it operates strictly under copyright law. sing 2016 internet archive
Most mainstream Hollywood movies—including Sing (2016)—are protected by copyright. They are not part of the public domain. Therefore, you will not find a legitimate, authorized copy of Sing hosted permanently on the Internet Archive. Uploading full, copyrighted commercial films to the Archive without permission violates U.S. copyright law and the Archive’s own terms of use. These are legal to host because they were
So why does the keyword “sing 2016 internet archive” still yield search results? Because users sometimes upload infringing copies, which are later taken down via DMCA notices. Additionally, the Archive houses many related items that legitimate users might mistake for the film itself. including Steamboat Willie (1928)
Creative fans sometimes upload parodies, AMVs (anime music videos using Sing footage), or audio rips of the soundtrack. These fall under fair use only if they are transformative. However, full movie uploads are not transformative.
Illumination Entertainment and Universal have, at times, released official clips, trailers, TV spots, and featurettes into the public sphere. The Internet Archive often preserves these shorter, promotional videos. You might find:
These are legal to host because they were publicly distributed for promotional purposes, and the Archive serves as a preservation library for such ephemera.