When Sammy is in the toilet house he has a wooden wall behind him. But in the closeup you can see the forest behind him.
The plot suppose to be set on one island. While it is not clarified where the location of the uncharted island is, various animals on this island usually live on different continents. E.g. Lions and Zebras only live in Africa while tigers live in Asia. In the movie they all live wildly on the same island.
When mentioning incredible places Martin mentions "Deridosolo", which doesn't exist in real life.
A passenger calls a dromedary, which is call" Dromedar" in German, simply a "camel". But a camel has two humps, a dromedary camel only one.