@ Craig Roberts
'Is there (and if there isn't - why the hell not?) a way for the general public to force a General Election? '
In short. No there isn't. The UK constitution (written on the back of a thousand now long-lost fag packets) has a model where the electorate turn all political decisions over to their betters in the House of Commons and then has no involvement in the 'democratic process' for the next few years. The only way an election can be called are:
1: at the end of a Parliamentary term (a maximum of five years);
2: the decision of the then Prime Minister to call an election at a time of his or her choosing;
3: the government losing a vote of 'no confidence' in the House of Commons - although this is more the done thing than any particular piece of statute. This is how the last Labour government fell in 1979;
4: the government losing a finance bill (the Budget) - again, not constitutionally required, but IIRC it has happened at least once in the 19th Century.
The monarch has no ability to independently dissolve Parliament. There is a fig leaf of doing so when the Prime Minister requests it prior to an election.
I do like the Eddie Izzard idea though.