One of the joy of being a father is that you can share your love of Star Trek with your children. Over the last two months, I have been re-watching the first six Star Trek movies with my kids - and I've been puzzling over Shatner's changing physical appearance. Much has been made of Shatner's hair, but I'm a bit confused - what appears to be a VERY obvious hair piece in the first movies later looks much more real in "The Undiscovered Country" and "Generations." Did the make up artists finally figure out how to tape on a convincing rug? And did Shatner have a face lift during the movies, or did the weight gain contribute to a smoother brow? All in all, it's interesting how much more realistically Nimoy aged than Shatner - which only contributed to Spock's memorable look