Mosab Hassan Yousef is a son of one of the founding fathers of the Palestinian group Hamas. He grew up in the shadow of Israel's occupation and the shadow of his fathers fight and rhetoric. He was the heir apparent and decided to take up the armed struggle. This got him arrested and in the grips of the Israelis.

He was then interrogated by the Shin Bet (Israeli Security Service) and they tried to turn him, he was still sent to prison. He then ended up working for the Shin Bet and this is his story. Now this is a basic documentary with interviews to camera from Mosab and Gonen Ben Yitzhak (his handler) for the most part. There is also use of archive footage to flesh out the tale and a bit of re-enactment too.

This is actually a very moving and extraordinary film in places with unexpected turns and reveals for both Israel and Palestine. This has the potential to be very divisive as it is a subject that burns close to a lot of people's hearts. That said it is better to discuss than to not and if this film encourages debate then I think that can only be a good thing - as indeed this documentary is too - recommended to those with an interest in modern and World history.

This documentary has one of those life-is-stranger-than-fiction premises. The son of one of the founders of the terrorist Hamas organization was successfully turned into an informant for the Israeli secret services, the Shin Bet. The story of Hassan Yousef would have remained one of the best guarded secrets of Israeli history had he not voluntarily exposed himself as a mole while living in the US after retiring as an Israeli asset. The story that gradually unfolds throughout the Green Prince is full of unexpected twists and intense political intrigue and family drama that one day needs to be turned into a full length feature film. But for now, we have this very competent documentary. Much of the film is a protracted interview with the Hasan with little camera movement, and simple lighting. This may sound like an overlong CNN special report, but the interview has such intensity, and Hassan narrates episodes of his life with such expressiveness and honesty, that the chronicle itself is gripping. It is interspersed with scenes that combine drone, night vision and CCTV like imagery, real news footage and some recreated acted moments, all heightening rather than replacing the narration. The storytelling and editing is tight and economical. Instead of taking a merely journalistic approach, it opts for a character study that slowly unfolds, turning a spy thriller plot into a story of betrayal and redemption that goes beyond the Israeli-Palestinian conflict. What the story does particularly well is show how gradually Hasan distanced himself from his father politically without ever disowning him. He simultaneously undermined him tactically and tried to avoid any threat to his life. At the same time, his "handler" Gonen Ben Yitzhak became a father- like figure. This bonding could be dismissed as no more than a predictable "Stockholm syndrome" denouement but for the fact that it was reciprocated by Gonen, who ultimately must also make a decision between advancing his career and protecting Hassan. The material never feels preachy or sanctimonious and it refuses to turn characters, even the Hamas founders, into cartoonish villains. A truly great documentarian like Werner Herzog or Joshua Oppenheimer might have taken a few more liberties with the material, and perhaps an even more cinematic approach, but this still deserves to be watched. In my case, the story lingered in my mind for many days after I had seen it.

Mosab Hassan Yousef is the eldest son of Sheikh Hassan Yousef, a leader of Hamas. He is caught running guns at 17 and imprisoned by the Israelis. He is shocked to find Hamas torturing people suspected of being informers. Israel's security service Shin Bet is able to recruit him and Gonen Ben Yitzhak becomes his handler.

I didn't know anything about this story before watching this movie. I honestly figured that this is a fictionalized account with actors for the first half hour. The style is very plain with Mosab and Gonen talking straight into the camera. The story is so compelling that it is utterly riveting. I do wonder why he did what he did. He gives explanations and hints but I'm not sure if there is something more.