The 31-year-old star is said to have secretly filmed scenes for the fifth installment in the Pirates of the Caribbean film series, reported Digital Spy.
"The top-secret one-day shoot took place in November and the set was in lock-down. Keira was really excited to reprise the character (Elizabeth Swann) that made her famous and get into her wigs and costume again," a source said.
"Her role will be only make a small return during the end credits to delivering killer lines hinting at a possible bigger part in sixth movie."
Disclaimer: No Business Standard Journalist was involved in creation of this content