Mills' original award disappeared from her home in the late 1980s and has never been found.

Well, sort of.

Mills won the Juvenile Award for her performance in Disney’sPollyanna, receiving a half-size Oscar statuette from the Academy.

Hayley Mills

Hayley Mills receives a replacement Oscar from Academy president David Rubin.Richard Harbaugh / A.M.P.A.S.

And you know, it’s not something it’s possible for you to replace.

They’ve broken the mold.

They said, ‘I’m sorry, it doesn’t work like that.'"

(She was at boarding school and did not attend the 1961 ceremony.)

“I didn’t know very much about the Oscars,” Mills recalled.

“I didn’t know very much about anything, really.

So it was all a big surprise… Mills’ new memoirForever Youngis now available from Grand Central Publishing.