In his third joust, William defeats his opponent after he is told "His people starve while he sits at banquet." Why does this inspire William to fight harder?
He grew up poor and knows what it was like and didnt want others to suffer too.
How does William become a "knight?"
William becomes a knight at the end of the movie when Prince Edward knights him.
Why doesn't William write his own letter to Jocelyn?
He is poor commoner with no education and as such can not write.
William continues to fight in the final joust even after his is seriously injured. Why does he do this?
He felt it was the right thing to do.
What events do you see in the movie that would be seen at a competition or tournament for knights?
Jousting, sword fighting