According to various sources, including interviews with the cast and crew, Prison Break Season 4 began filming in March 2008. The production team worked on a tight schedule, with a plan to film the 13 episodes in approximately 6-7 months.
The fourth season of Prison Break was filmed over a period of approximately 11 months, split into two distinct blocks due to a planned two-part broadcast schedule. when was season 4 of prison break filmed