In the book Star Wars: Tarkin by James Luceno, we find this passage (emphasis mine):
THE DOOR TO TARKIN’S QUARTERS whooshed open, disappearing into the partition, and out he marched, dressed in worn trousers and ill-fitting boots, with a lightweight gray-green duster draped over his shoulders.
This amused me, because when Peter Cushing was filming his role as Grand Moff Tarkin in Star Wars - Episode IV: A New Hope, his costume boots were too small. He reached an agreement with George Lucas that he should be filmed almost exclusively from the waist up so he could wear his carpet slippers on set rather than the painfully tight boots.
Quote from Peter Cushing1, describing the problem with his boots in A New Hope; taken from a fansite devoted to the actor.
From the site "The Cushing Collection", this picture is captioned: "Peter Cushing’s carpet slippers on display in the Whitstable Museum in 2013. When Cushing played Grand Moff Tarkin in STAR WARS, the boots they got for him were far too small, and so he asked George Lucas to just film the upper half of his body most of the time, while he was shuffling around in his slippers. He joked afterwards that there’s no wonder that Tarkin is such a nasty fellow - “his boots are killing him!”"
I suspect2 that this is more than mere coincidence, but I'd like some confirmation one way or the other.
Is the novel Tarkin's mention of "ill-fitting boots" an obscure reference to Cushing's problems with the boots he was supposed to wear in his role as Grand Moff Tarkin in A New Hope?
1 The quote is apparently taken from his memoir, 'Past Forgetting’: Memoirs of the Hammer Years, by Peter Cushing.
2I'm not the only person who made this connection:
Tarkin: It's James Luceno writing a book about Tarkin like Darth Plagueis.... Again, lots of small EU references that made me happy. And I actually laughed out loud at a line that described Tarkin's boots as being "ill-fitting", because it's so meta. (The boots that were part of Tarkin's costume in ANH were too small for Peter Cushing, so he actually filmed the entire movie in bedroom slippers. There aren't any shots of Tarkin's feet in the movie. :D)