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.
You want to really hit the Americans here. Roll back the copy right to a reasonable period. Are all Disney cartoons copyright free.