I never actually saw this movie but I remember seeing a trailer of it on Cartoon Network once a few years ago. It was live-action. From what I remember, one minute, a boy sees and says: “Hello, Fox.” to fox he comes across in the woods and then, the next minute, the fox suddenly replies with a rough/raspy voice and somewhat malicious grin on his face: “Hello, boy.” that suddenly shocks the boy.
Can be The Little Prince? https://youtu.be/fEPqgSNLfK8
No, definitely not that movie. Thanks for trying though.