sentence2: 2015년 4월 4일에 확인함.  “Exclusive: 'Avengers Age of Ultron' Casts James Spader as the Film's Legendary Villain”.
sentence1: EXCLUSIVE: 'Avengers: Age of Ultron' Casts James Spader as the Film's Legendary Villain نسخة محفوظة 02 نوفمبر 2013 على موقع واي باك مشين.