Princess Diana captivated Hollywood stars, with Sylvester Stallone and Richard Gere reportedly nearly fighting for her attention at a dinner party hosted by Elton John, revealing her magnetic charm.

The movie stars weren't immune to Princess Diana's charms, according to the new book "Dianaworld," exclusively excerpted by PEOPLE ...

One passage recaps how the "Diana effect" nearly drove Sylvester Stallone and Richard Gere to fight over her during a party in the 1990s, according to Elton John's husband, David Furnish.