The film, part documentary, part polemic, includes a re-creation of the treaty exchange along with a discussion of the meaning of the terms.
The governments have a cooperation treaty to exchange scientific and technical knowledge in aquaculture.
A recently signed treaty to exchange tax information with American authorities has been derided by some American prosecutors as a sham because it would not take effect for a few years, which they said would give tax cheats ample time to find another haven.
For bilateral treaties ratifications are exchanged; otherwise, they are deposited in a place named in the text, and the treaty takes effect when the specified number of ratifications have been received.
Should the propping up of the single currency force a hefty treaty change at some future date, then Britain can be expected to make some demands in exchange for nodding the treaty through.
But in 1995 Arab states accepted the indefinite extension of the nonproliferation treaty, in exchange for a commitment for such a Middle East conference.
Also in 2009, Switzerland and the United States signed a protocol amending a 1996 tax treaty governing exchanges of information on Americans suspected of avoiding taxes.
The committee's report did not take a view on whether the chancellor's five tests for euro membership have been met, although it noted that Britain had met all the original conditions laid down for membership in the Maastricht treaty, except exchange rate stability.
In May, President Vladimir Putin hinted that he might ratify the treaty in exchange for the European Union's support of Russian membership in the World Trade Organization.
Following the advice of the Russian negotiator, Prince Gong exchanged ratification of the 1858 treaties; in addition, he signed new conventions with the British and the French.
