Anakin's eye colour
In Ep1 and Ep2 both actors who play Anakin Skywalker (Jake Lloyd and Hayden Christensen) have blue eyes, similar to Luke's (Mark Hamill) eye colour in the OT.
But at the end of Ep6, when Vader has returned to his original form and Luke has removed his helmet, Anakin (David Prowse or is it Sebastian Shaw I don't really know) has brown eyes.
What's up with this?