Ashton gets 6 uniform buttons, meaning she made out with 6 of Billy's friends at West Point Graduation Day.
When George brings up the conversation about Billy and Brett's marriage, he says that they are too young to marry. However, he married Constance when he graduated West Point, which would make him the same age as Billy is now.
Goof: Orry's walking cane clearly bends when he hits one of the fighters on the back while breaking up Charles's fight at the tavern.
Goof: When Bent is making Orry and George stand up with the buckets of water in their hand, it is very obvious that the buckets remain empty for the most part of the scene until they are too tired and begin to spill some water.
It is very obvious that the slave labourers that are working in the fields at the very beginning as little Ashton and little Brett pass by aren't doing any job whatsoever.
Patrick Swayze's dancing skills are evident during the sword fight with Bent.
It's not really likely that Orry would defeat Bent in the sword fight. Orry was described as not being a talented swordsman and fencing requires a solid understanding of strategy. Orry was just a cadet and not a good one when it came to military studies, whereas Bent was a cadet drill master and an experienced swordsman.
Goof: Right before leaving for West Point, Orry puts the flower that Bretts offers him in his lapel. However, the flower disappears at times as he is riding until the scene where he meets Madeline for the first time.