Die Abrafaxe - Unter schwarzer Flagge (2001) on Netflix

Plot summary

Abrax, Brabax and Califax slip into the back of a museum, where they find a rare golden bowl that belongs to a legendary Aztec treasure. When they play with it, its layers shift and the three boys are carried back in time. Abrax and Brabax come to aboard a Spanish galleon sailing under captain Don Archimbaldo. Califax arrives instead in Tortuga, the pirate city, which is governed by Anne Bonny. The boys meet Blackbeard, a pirate of the Caribbean, and they side with Anne Bonny against him, hoping to keep Tortuga free while they search for a way home.