 FACT: At the end of the movie Virgil and Amy walk away and Virgil is  letting his new guide dog lead him. The guide dog walks straight  past the curbside obstacle without hesitation. No working guide dog  would have missed this obstacle, it is too inbred during their  training. Missing an obstacle of this magnitude would have called  for, at the very least, a firm word of caution if not a subtle leash  correction. The guide dog would have also stopped to check for  traffic as Virgil did not seem to be paying attention.