Disclaimer : obviously longbows were very potent weapons, just not as ''awesome'' as depicted.
An example would be the second major English victory during the Hundred Years War, Poitiers. Despite very favorable circumstances, actual fatalities from arrows seems to have been low amongst humans (not so much amongst horses). Even what should have been a deadly scenario, two small groups of French knights (300ish in total) charging separately at archers lines, resulted in extensive melee combat