Notes from the Manager
The movie in the comic is an absolutely brilliant British political comedy called In the Loop (apparently a stand-alone, big-screen version of the BBC series The Thick of It, which I am not familiar with).
The movie has been out in the US for about a month now, in limited release, but it should still be in theaters in all the major markets and slowly finding its way to smaller cities around the country. The specific scene Jason and Lydia are watching is early-on in the movie and can be seen in this clip from YouTube:
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