The personal details of Sylvester Stallone were among those of 47,000 people obtained in hacking attacks against a Hollywood studio which are believed to have originated in North Korea.
Also among the victims is Judd Apatow, the film-maker behind comedy blockbusters including Bridesmaids, This Is 40 and Anchorman, and Bridesmaids actress Rebel Wilson.
The documents, seen by the Wall Street Journal, were posted online and included details of current and past employees and freelances associated with Sony Pictures Entertainment. In one case they dated back to 1955.
They contained social security numbers, home addresses, email addresses and pay details.
North Korea is suspected of carrying out the attack after it denounced Sony's upcoming film The Interview, a comedy in which Seth Rogen and James Franco play journalists recruited by the CIA to assassinate Kim Jong-un.