Damn, I didn't know about that. It's too bad Moffat had to remove the reference. Do you know what the reference and where it happened?The problem here is there's a whole extra set of legalities in place which prevents the modern series from referencing the Cushing movies, as proven when Moffat had to excise the reference to them from Day of the Doctor at the last minute.
Didn't Pygram record some dialogue and then it was cut for time (or some other reason)? A pity because any Farscape fan knows, he would've been an excellent Tarkin.Oh, you're probably thinking of Wayne Pygram in Revenge of the Sith. Calling that a "performance" is probably being generous though, he literally just stood there for ten seconds or so. It's only because of the credits we know that was even supposed to be Tarkin.