marrieges that may go wrong.....

[kentish]

I know that when a filipina get married in UK they must registered it to the Philippine Embassy here in London otherwise their marriage will not valid as well in the Phillipines.

Hang on a minute, does this mean that marriage of filipina citizen to a British citizen thats been done here in uk is not valid in the Phils if not registered at the PI embassy in london? Is it A MUST to register a marriage at the embassy?
CAN SOMEBODY CORRECT THIS?