Though it did not go off exactly as planned, as later claimed by British Field Marshal Bernard Montgomery–for example, the Allies were able to land only fractions of the supplies and vehicles they had intended in France–D-Day was a decided success. By the end of June, the Allies had 850,000 men and 150,000 vehicles in Normandy and were poised to continue their march across Europe.

The heroism and bravery displayed by troops from the Allied countries on D-Day has served as inspiration for several films, most famously The Longest Day (1962) and Saving Private Ryan (1998). It was also depicted in the HBO mini-series Band of Brothers (2001).

http://www.history.com/this-day-in-history/d-day