Liam and Noel Gallagher looked in great spirits as they departed Venice Film Festival on Sunday after the premiere of their Oasis documentary.The hitmakers put on a brotherly display on the red carpet at the premiere of Oasis: Don’t Look Back In Anger on Saturday night. Noel, 59, described Liam, 53, as ‘delightful’ and saying that, although Liam has never apologised to him, they have managed to rebuild their relationship.Already the film has gained widespread popularity ahead of the release, with the Daily Mail’s Brian Viner a firm fan of the documentary. Read his review here.Noel looked casually cool in a navy jacket while Liam opted for a trendy suede jacket as they arrived at Venice airport.The brothers waved to fans and signed autographs after boarding a water taxi together. Liam (pictured) and Noel Gallagher looked in great spirits as they departed Venice Film Festival on Sunday after the premiere of their Oasis documentary Noel (pictured) looked casually cool in a navy jacket while Liam opted for a trendy suede jacket as they arrived at Venice airportIt was reported this week that Liam failed to turn up for the final rehearsal before Oasis’ reunion tour started.The group returned to the stage for the first time since 2009 at the Principality Stadium in Cardiff on July 4 last year, but the singer sparked chaos when he was a no-show at the last run-through and only made his appearance ’20 minutes before’ the gig started.In the new documentary, the Daily Mirror reports Noel said: ‘We’ve got a chance here to change the narrative of the band. We have got a chance to fix all the s*** that we have just let drift apart.’The final run-through, the night before the thing. Didn’t see him. Ohh. The next thing is one of the biggest f****** moments of our lives right. And he’s not rehearsed.’I am like oh yeah? He turns up 20 minutes before the gig ‘alright, what’s the catering like?’.’I am like how the f*** is this…what the f***. And then he grabs my hand and I am like “What the f***?”. And off he goes, sounding like he was 30 years young. Just rocked up and did it. And I am like “You absolute mad.”‘The film – which featured remote cameras to capture rehearsal footage without disturbing the band – showed how strained relations were between brothers Liam and Noel in the beginning.Oasis began rehearsals without their singer, who eventually walked in and asked: “Are we ready then?” before starting to sing. The hitmakers put on a brotherly display on the red carpet at the premiere of Oasis: Don’t Look Back In Anger on Saturday night Already the film has gained widespread popularity ahead of the release, with the Daily Mail’s Brian Viner a firm fan of the documentary Noel, 59, described Liam, 53, as ‘delightful’ and saying that, although Liam has never apologised to him, they have managed to rebuild their relationship The brothers waved to fans and signed autographs after boarding a water taxi together Noel looked happier than ever after a brotherly weekend awayThe Oasis ‘Live in 25’ reunion tour grossed each of the Gallagher brothers around £100million, and is set to be followed by another tour next year.But, until today, the inside story of how and when the warring pair made their peace has never been told.Noel said that he was taken aback by his own emotional response to his reconciliation with Liam, and had to turn his back on the audience for much of the 41-date tour to hide his tears. He said: ‘All the little things that used to annoy us about each other have gone away. We have come out of it now as equals. Here is a word which I never would have thought I would say about him: delightful.’ He added: ‘We get along now, we text like normal people. The music brought us together.’Despite the apparent outbreak of peace, the Gallagher brothers opted not to submit to a press conference where they could be asked questions about their relationship. The film’s co-director Will Lovelace said: ‘They seem to be getting on pretty well.’In the documentary, where they are both interviewed, Liam notes that the make up was effected: ‘Without saying a word’. He never apologised to his brother, despite their infamous rows in Oasis before the 2009 break up, and the sniping in the years which followed, including slurs against Noel’s daughter Anais and his now ex-wife Sara.Indeed, Sara is not even mentioned, despite the fact that it is widely accepted that their divorce paved the way for the truce, with Liam having called her ‘Yoko Ono’, who was famously blamed for the break-up of The Beatles – and worse.Liam clearly doesn’t want to discuss or say sorry for what happened. He says: ‘Leave it out mate, we had a little argument, you know what I mean.’ He later adds: ‘I didn’t mean it to be the way that it was.’ The Oasis ‘Live in 25’ reunion tour grossed each of the Gallagher brothers around £100million, and is set to be followed by another tour next year In the documentary, where they are both interviewed, Liam notes that the make up was effected: ‘Without saying a word’The filmmakers admitted that the Gallaghers were not really on speaking terms when filming began during rehearsals for the tour. They travelled separately and the tour promoters unusually only paid them once they had completed all 41 dates because they had such a history of conflict.Because they weren’t on speaking terms they were initially interviewed separately, with Noel saying that he simply couldn’t envisage sharing a stage with Liam again.At their first meeting, in a rehearsal room before the tour, neither is able to look the other in the eye. Liam enters the room, asking why the drums have a baffle on them and says: ‘Shall we start?’He leaves at the end of the day, the moment his vocal performance is over, leaving the rest of the band to finish the track as the door swings behind him.Noel later says to his bandmates: ‘He comes in a bad mood. He leaves in a bad mood. He just comes in and then f***s off.’Creator-writer-producer Steven Knight said: ‘We didn’t really know how it was going to go when we started. These are British working-class men, they are not going to hug and kiss each other.’It wasn’t until they were into the tour that they were in a place where they were able to sit down with each other.’ Oasis: Don’t Look Back In Anger will launch at Imax screens and in cinemas on September 9 The Daily Mail exclusively announced earlier this week the band set to take to the stage again following the extraordinary success of their sell-out comeback shows (pictured 2008) Liam refused to do a run-through on the eve of their first concert, in Cardiff last year, and showed up for the event with just 20 minutes to go. Noel is seen nervously pacing the loading bay waiting for him. When Liam arrives, ‘He asks: ‘What’s the catering like?’,’ says Noel, and he adds that he is astonished when Liam grabs his hand so that they arrive on the stage hand in hand.Liam, never one for too much introspection, says: ‘You just have to put on your big boy pants and get on with it. Do it well and move people.’As the tour goes on, their children meet each other for the first time in many years and relations thaw. Noel has two teenage sons, Sonny and Donovan, with his ex-wife Sara, and Anais with first wife Meg Mathews.Liam has Lennon with his first wife, actress Patsy Kensit; Gene from his marriage to All Saints’ Nicole Appleton, and Molly from a brief relationship with singer-songwriter Lisa Moorish in the late 1990s, who all went on tour. He also has love child Gemma who lives in New York.Noel says: ‘My kids met his kids. They didn’t know each other they have never met they are all best friends now.’ Liam adds: ‘They are loving it – f***ing spangled every night.’Initially, Noel believes that, even though they have agreed to the tour they will not make up. He says: ‘I was born with one fatal flaw in my character: I will not forgive people. That is something I was born with. I haven’t got any forgiveness in me at all.’Of his brother he says: ‘He’s a man who truly does not give a f***. He is who he is and that’s the way of that. He’s not going to change. He’s not going to come to us, we have to go to him.’Oasis: Don’t Look Back In Anger will launch in Imax screens and in cinemas on September 9, and the directors say that they hope that the fans who couldn’t get – or afford – tickets to the gigs will finally get as close as possible to the experience of having been there.