Watership Down (1978)

Audio problem: When Hazel asks Tab (the farm cat) if she can run, Tab replies, "You'll see," to which Hazel replies, "I think not," but as Tab charges towards him and Pipkin, you hear Hazel say "I think not" a second time. (00:37:38)

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Hazel: Are you hurt?
Kehaar: Kaah kaah.
Hazel: If he's hurt, maybe we ought to help him.
Bigwig: A bird? What for?
Hazel: We - help - you.
Kehaar: Piss off.

Trivia: The term "Prince with a Thousand Enemies" used in the prelude is a direct translation of the rabbit folk hero El-Ahrairah's name.

Question: I'm trying to remember the song that was made famous by this film. Can anyone help me?