In the anvil scene, the smith is holding a long thin blade in his tongs which he works on. In the next cut - at the moment when the anvil breaks down - the blade has suddenly disappeared.
When Data puts down the anvil, it keeps rocking on the uneven ground for a short while, showing that the anvil is in fact very light.
Just after Data hands over the radioactive case at the beginning of the episode, he can be seen standing on a green actor's mark.
Data has been a Bridge Officer since the beginning of the series (7 years) so why wasn't he promoted to full Commander like Deanna Troi was after taking the Bridge Qualification tests.
Data, who is observant and notices everything, somehow does not notice that Troi is now a full commander. He should have noticed the three solid pips on her uniform to indicate this rank. He does not find out until Troi announces that she has bridge duty.
When Data walks into the village and he's repeating what he's being asked, he uses a contraction.