re: I have a question about The Prestige

Borden A and Borden B shared the same life preapprenticeship. It's how one of them saw through the old man's fishbowl trick.

Borden A (magic obsessed/showmanship) and Borden B (magic obsessed/ family)

Borden A

Kills Angiers wife
Pushes the bullet trick
Fights with B's wife
Gets with Angiers asst
Is Borden at dinner and majority of scenes
Plants the fake diary
Refused to give up showmanship feud
Is executed

Borden B

Is more by the book
Comforts the nephew
Gets married has a kid
Fallon the majority of scenes
Comforts his child when A fights wife
Less showy off stage
Gets revenge for his brother.

The film usually tells you we hope A through arrogant coldness or B through a warm comfort.

"Tell by your eyes if you love me or magic more today"

Rebuffing the wife on losing costume.

Going to his daughter.

But A died and B lived.