Superstar Johnny Depp has gone batty while filming Pirates of the Caribbean 5 on the Gold Coast – sponsoring one baby flying fox and getting up close with another.

The actor and passionate wildlife advocate heard about the story of a 30-gram flying fox found orphaned after a recent thunderstorm near where the crew was shooting.

Johnny Depp with Bats Qld volunteers Ashley and Paula Fraser, as well as Fifi the flying fox.

The Australian Bat Clinic has now christened the tiny creature "Jackie Sparrow" after Depp agreed to become its sponsor while it's in care.

Depp plays Captain Jack Sparrow in the popular adventure franchise.