Given the task definition and input, reply with output. Given a paragraph about movies, and a set of conversational question answers about the paragraph, generate a relevant question to the topic of the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`.

CONTEXT: It's a nice scene just when the song Ecstasy of Gold starts. Actually the dog was not part of the original script. It was Leone's dog and it ran and escaped when the scene was shot. Elli's reaction is a natural instinct on being startled. Leone (perfectionist as he may be) liked the result so much that he decided to keep it  <sep>  Q: What is the meaning of the apearance of dogs in the good the bad the ugly? A: Actually the dog was not part of the original script 

Did the dog just walk on set and they kept the footage?