Question: Which Walt Disney film was released first, Greyfriars Bobby or Tron?
Sentence (from "Greyfriars Bobby (film)"): The screenplay by Robert Westerby was based upon the 1912 novel "Greyfriars Bobby" by Eleanor Atkinson which was based, in turn, upon an incident in 19th century Edinburgh involving a dog that came to be known as Greyfriars Bobby.
Relevant evidence: No