The Huns were originally an Asistic steppe tribe. As such, they were horsemen par excellent as well as bowmen. Interestingly, they also used the lariat as a weapon with great effect. By the time of Atilla, they were an aggregation of all of the various peoples that they had conquered, although the core of the army remained Hunnic horse-archers.
As to the accuracy of the tv movie, I could not bring myself to watch it after I saw the trailers which showed the Roman troops marching around in Loricae Segmentatae (the banded strip armors of the early Empire, as seen on Trajan's Column) and aotherwise armed and equipped as Early Principate Legions. That would be like having the troops in a VietNam movie running around armed and equipped as the early colonists at Jamestown and Plymouth, or in the English Civil War. You know, back and breast plates, steel pakeman's pot or lobster tail horseman's pot, matchlock pistols, rapiers, lances, and pikes, Cavaliers and Roundheads. The accuracy of the equipments was so damned bad in those trailers that I gave up before I even saw the show.
BTW, the swords would have likely been some form of the Roman Spatha, the long cavalry sword that was, by the time of Atilla, in common use throughout the entire Roman Army, which, by the way, was a mobile cavalry-heavy army, not the heavy infantry Legions of the Early Principate.
I apologise for ranting on here, but Roman History is one of my current favorite subjects and I am reading everything that I can find on it.
------------------
Walk in the Light,
Hugh Fuller