(Probably) duplicate titles

This compilation of the same material, where all the participants are seen in archive footage only, has two seperate titles on IMDB. 2017: https://www.imdb.com/title/tt8518920/ and 2018: https://www.imdb.com/title/tt8685584/ There are some differences, but they are made by the same director and have almost the same title and same 'storyline'. The 2018 version is probably a slight upgrade/update, but it's clearly the same product. It's very difficult to find any information of this title, btw. Also, some time ago I tried to change some of the actors to 'archive footage' but because of Chevy Chase's '1960s' character name, IMDB wouldn't let me.