The deep underlying theme of the movie is eliminating fear, that "fear is a sickness", a disease, to be conquered. We are no different than any other animal, our base instinct response to any given situation is "fight or flight".
Once we learn to disassociate from fear, we are liberated, completely free. Freedom from fear of failure, fear of success, fear of loss, both emotional & monetary, fear(s) of life, fear of death. We become fearless and thus, free.
Once we've disassociated from fear, going forward, faced with any given situation, fear is no longer a consideration, leaving "fight" as the sole remaining response.
Fear nothing. Be free.