Seen it before, it was proved to be inaccurate. The arrowheads they tested were neither properly made or sharpened and the power with which they tested it was much less than generated by the longbows of the time. The longbows were very effective. the English archers could loose 60,000 arrows per minute between them. Weather they took out knights or horses made no difference. A unhorsed knight was so much scrap metal in that mud. Most of the french knights were killed by daggers through visors. But were taken out of the fight by longbows. The english fought smart, the french fought like idiots relying on the power of a cavalry charge, in deep mud, uphill, with trenches dug infront of the english positions. To top it all the english had dysentry and had been chased half way round france before the battle. They got caught which is the only reason they fought, they were retreating and got cut off from the coast. They had to fight, so they did.