If you are familiar with Lupin's history in Anime, you have most probably seen "The Castle of Cagliostro" (1979). If not, I would watch that highly rated older movie first. The classic anime is a good introduction to both the buddy characters and the adversaries (such as the choleric Inspector Zenigata) in the Lupin universe.
This new CGI Lupin movie from 2019 (released in Japan in late 2019, the Covid epidemic, unfortunately, prevented a wide cinematic release in many countries in 2020) almost rates as high as the 1979 classic in my opinion; the 3D animation quality, in particular, is fantastic.
The story/plot is somewhat predictable and (especially) the last third shares some parallels with the third Indiana Jones movie. That's not a major issue in my opinion (the third Indy movie was released all the way back in 1989, most viewers won't remember details).
Summary: This is a fun and fast-paced kids' (especially suited for older kids and teens) movie that adults can enjoy as well.
I would rate it at least 6+/10 and add an extra star for the excellent 3D / CG animation quality, 7+/10 stars in total.
