In 2012, Scott Whitney was imprisoned over a drug trafficking charge. Beginning in 2015, he used contraband cameras to record what was happening around him in Florida’s Martin Correctional Institution. And he did not merely snap scattered videos, but embarked on making a full documentary, complete with written contracts and release waivers signed by his fellow inmates. (He is officially vice president of the production.) Now his footage for the project, called Behind Tha Barb Wire, has been smuggled out of the prison and given to the Miami Herald, which has posted a compilation of “highlights” as part of a story on his efforts.