We heard several politicians and Establishment figures speaking French on today's PM programme on Radio 4 (listen here for a few more days - scroll through to 47:30). Camilla, the Duchess of Cornwall is currently in Paris on a solo trip and she was reported to be feeling 'terrified' at the thought of having to make a speech in French. Her accent is pretty dire, it must be said. The radio programme also had clips of Churchill, who made no attempt to make his French sound French, Ted Heath and Margaret Thatcher, with their cut-glass vowels, and Tony Blair, whose French was the best of the bunch.
A rather jovial Liverpudlian professor of French at the University of London Institute in Paris described Camilla's efforts using the French idiom 'like a cow with a musket', which means clumsy or awkward (I'd never heard the phrase, but a quick internet search suggests it is not just a French expression). Professor Andrew Hussey said that the British weren't as bad at speaking languages as people (even the Brits themselves) assume they are - you just need courage, he said, and shouldn't be afraid of making mistakes, or even sounding British.
Footballer Joey Barton, who is a Liverpudlian playing for Marseilles, has another approach to learning the language of the country where he is now based. He speaks English with an Inspector Clouseau-type accent (see this clip).