The delayed behind-the-scenes Liverpool documentary about the club’s 2023-24 season has been changed to a retrospective of the entire Jürgen Klopp era – a decision that was eventually taken after the legendary manager said he was to quit last January.

Klopp is understood to have been re-interviewed in the eight months since he left Liverpool in May and the emphasis of the documentary has shifted in the interim to look back at the totality of his time at the club – almost nine years – rather than just a single season. Other key figures from that Liverpool era going back further than just the 2023-24 season have now been interviewed to cover the full span of the Klopp years and the show has been cut from its original length of up to eight episodes down to four.

It is understood that the show has been picked up by a streaming platform and it has remained a club project with Liverpool having agreed the deal with production company Lorton Entertainment. Klopp’s involvement, despite no longer having a role at the club, has been a major help in allowing Lorton to change the thrust of the series. The club originally announced in January that it was embarking on the behind-the-scenes project, soon after the news that Klopp, 57, was leaving.

The deal to make the documentary, however, was agreed before it was known that Klopp would be leaving Liverpool. Only a small circle of executives from the club’s US owners Fenway Sports Group were aware in November 2023 when Klopp communicated the decision to his then employers.

In the weeks after Klopp made his announcement on January 26, and despite the club having made public its involvement in the documentary, it became clear it would be difficult to launch the series in the summer in its original format, when a new manager would be in place. Although much of the documentary focuses on last season, the scope has been extended to all of Klopp’s time.

The fee for the production was an important part of the club’s financial consideration last season with the Anfield Road stand having opened late after the original contractors who were building it went into administration. In the past, clubs have earned as much as £10 million for similar access.

The club first announced the documentary on January 31 last year, saying that filming was already under way and that the series was to be streamed at the end of the 2023-24 season. Liverpool and Lorton said that the series would give a “unique insight into the club” – its history, its supporters and also Klopp’s first-team squad.

Klopp said at the time: “I thought we should provide a rare opportunity for viewers to have more of an inside look at what makes this club so special: its people, from our fans to our players and those who work so hard behind the scenes.”

Klopp has filmed new interviews in his home in Majorca. It is not clear how much extra filming the change in direction of the series has necessitated although the long delay in its release would suggest that it is a considerable amount. Lorton has previously made the Steven Gerrard documentary which streamed on Amazon Prime and Coleen Rooney’s The Real Wagatha Story, which was commissioned by Disney+.

Behind-the-scenes documentaries about Premier League clubs have become popular with streamers in recent years, although editorially the clubs have the ultimate say. Manchester City, Arsenal and Tottenham Hotspur have been the subject of the Amazon Prime series All or Nothing. An earlier version of the genre, in 2012, Being: Liverpool featured new manager Brendan Rodgers’s struggles to get to grips with a club in the early days of FSG’s ownership.

Klopp has now begun work as Red Bull’s “global head of soccer” overseeing the six-club empire owned by the energy-drink manufacturer. He will visit the Red Bull clubs in the US, Brazil and Japan in the weeks ahead and said this week that he saw the job as a new challenge that would be very different to his life in management. He has spent the previous eight days at the various Red Bull bases in Salzburg and Munich and at the clubs in Salzburg, Leipzig and Paris.

His Anfield successor, Arne Slot, has taken Liverpool to the top of the Premier League and Klopp said this week that only “0.01 per cent [do] I think ‘Oh my god, I should still be there’”. Klopp said that he often exchanged messages with Slot and some of his former players.

Lorton Entertainment was approached for comment. Liverpool declined to comment.