Continuity: Jim Prideaux goes off on his abortive mission to Czechoslovakia at the end of March. Following this scene is a strap-line that says "six months later". That should put the continuing action at the end of September. However we see snow on the roads, and Roddy Martindale saying to George Smiley in the restaurant "... I do hope you're not going to tip him. It's a guinea at Christmas".
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