Cameron Diaz have been awarded libel damages, the burden is on the defendant to prove an item was true.

"The First Amendment restrictions in U.S. libel law make it virtually impossible for international celebrities other high-profile individuals to sue successfully," Tweed told the Associated Press. "But with the advance of the Internet, and with U.S. publications now extending their distribution network into Europe, they must subject themselves to libel laws in these jurisdictions."

Tweed said that he has already received permission from the Belfast high court to go after the Enquirer, even though the tab's home office is in Boca Raton, Florida.

A spokesman for American Media declined to comment.