I've never seen Coupling but I'm not surprised to hear that Jack Davenport has a flair for comedy. I watched the DVD of the first Pirates movie and he and Keira Knightly did some commentary together (a few scenes only); they were both funny and articulate.

Bummer about accidental spoilers but I think if you didn't enjoy the second movie, you won't find much to appreciate in the third. Although the third does have an ending, unlike the second...

Thanks for the icon appreciation.