Starring: Joseph Gordon-Levitt. Out Magazine. September 12, 2013 [May 6, 2018]. (原始内容存档于2020-11-26). Lamont, Tom. Joseph Gordon-Levitt: 'Edward Snowden
(原始内容存档于3 June 2021) (英语). Gardner, Tony. Wakefield Council Lib Dem leader TomGordon selected as Westminster candidate. The Yorkshire Post. 6 February 2023