Blake Lively and Justin Baldoni's 'It Ends With Us' legal battle is the subject of a new documentary titled 'He Said, She Said.' It airs in the U.K. on March 17 and will debut on Investigation Discovery in the U.

Following Lively issuing a complaint in December over Baldoni and key stakeholders in the film sexually harassing her and orchestrating a smear campaign against her before turning the claims into a lawsuit, Baldoni fired back with a civil lawsuit against both Lively and her husband Ryan Reynolds in January.