Some celebrities don’t know when to keep their traps shut - like Charlie Sheen and Rosie O’Donnell, who are throwing their weight behind the twisted theory that the United States government was behind the 9/11 terror attacks.

Page Six has learned that Sheen, the hooker-loving Hollywood hunk, has agreed to narrate a new version of the loopy YouTube documentary “Loose Change,” which claims that a corrupt faction within the federal government orchestrated the mass murder at the World Trade Center. ...