Trek sigs

No threads so I decided to start one. Watched the Trek VI movie last night, "Undiscovered Country" (the last one featuring TOS cast). I always liked the end credits reel, where the main actors' signatures are written across the screen. I was just wondering if anyone has ever compared those to sigs acquired in person? for accuracy? I know Shatner's sig changed throughout his career. I have one of his earlier ones but none of the others. I've seen DeForest Kelly's and Nimoy's, and they looked genuine in the movie credits. I would guess they were all genuine motion capture but you never know.