Much has been made of the seemingly interchangeability of Jeremy and Jason London, the drop-dead-handsome, 24-year-old identical twins who have Hollywood calling. When Jason had to pull out of NBC’s acclaimed yet short-lived series I’ll Fly Away, Jeremy was hired to take his place. When PBS decided to film a finale to the canceled show, Jeremy was unavailable, so the producers called on Jason. Nonetheless, one is struck more by the twins’ dissimilarities. Jason, known for his roles in Dazed and Confused and Safe Passage, is rail thin and brooding, retaining more of his native Oklahoma twang than his brother. […]