The Adventures of Tintin is widely regarded as a classic of comic art, but some issues are rightly criticized for racial stereotyping and a romanticized view of colonialism. This is hardly surprising, however, as the series dates back to the 1930s.
There are also several animated television series. The best known is a French-Canadian co-production with 39 half-hour episodes.
I also loved it!
The Wikipedia article section on the proposed sequels is a wild ride, but it ends on a hopeful note: