What is The Jack Bull? (enjoyed the film very much)?

Answer 1

The title refers not to a piece of livestock, but a metaphorical Jack Russell terrier that, once it's annoyed enough to close its jaws on something, will hang on to the point of death.

Answer 2

Know you saw the movie and enjoyed it. And know what it is about. Your question. First off its the title of the movie. Well Jack is a man's name and Bull is an exceptionally large, strong, and aggressive person. Large and stronge like a Bull.
Take care.

Answer 3

http://en.wikipedia.org/wiki/The_Jack_Bull