The Brad Pitt and Angelina Jolie documentary is underway. High-caliber investigative journalist Ian Halperin is behind the timely film project. The Canadian writer and filmmaker promises to expose the truth about the break-up. He claims that the "By the Sea" couple's marriage has already collapsed one year before the divorce filing.

Mirror reported that Halperin will be revealing lots of secrets about Brangelina according to a source. Halperin has covered every minute detail about the relationship and the real reason for the divorce. He will substantiate his claim the couple has literally separated in soul and spirit since one year before the publicized divorce.

The documentary will feature never -before-seen footage and interviews with the Hollywood couple. The author of famous documentaries, books, and films is aware that the couple has shown a united front these days. Jolie has been tolerant lately about Brad Pitt's time with the kids. No wonder he is much happier these days.

He was reportedly focusing on his body and has given up drinking totally. He has socialized frequently and attends events even though he is alone. In the recent Golden Globes Awards, he was applauded for his attendance despite experiencing emotional problems.

The "Allied" actor has been cooperative with his wife about the divorce to hasten the resolution of their case. They have opted to have the case heard in a private court. This is the best option that they have chosen because of their high-profile stature.

Halperin was behind controversial projects like the "Unmasked: The Final Years of Michael Jackson." The book became a no. 1 best-seller in the New York Times list. "Celine Dion: Behind the Fairytale," "Fire and Rain: The James Taylor Story," "Who Killed Kurt Cobain?" and "Love and Death: The Murder of Kurt Cobain" are some of his famous works and some are co-authored by Max Wallace.

Daily Mail has published Halperin's Brangelina story that predicted the divorce long ago. The Brad Pitt and Angelina Jolie documentary will shed light on the mystery of the break-up of Hollywood's power couple. It might help fans and supporters of the couple to understand what they have gone through and why they have decided to separate.