'Glee: The 3d Concert Movie' director Kevin Tanharoen took part in a live webchat via Livestream yesterday, Aug. 2, just one day after the film was completely finished! The filmmaker shared some inside scoop on the upcoming movie, which will hit theaters on Aug. 12 for only two weeks.

Tancharoen discussed how the film was different from regular music documentaries because of the unique nature of 'Glee.' Instead of seeing an actual artist prepare for a show and perform, we are seeing the 'Glee' characters prepare. "So instead of seeing Lea Michele get her makeup done, it's Rachel Berry," Tancharoen said.

He also went on to explain that the backstage interview footage with the 'Glee' cast was improved for the film. Tancharoen, who has worked with Britney Spears and the Pussycat Dolls in the past, said, "Ryan Murphy walked around with me [while filming] so [the cast] was very comfortable … There are some similarities in all of them with their character counterpart and that's why they're able to portray them so well."

All of the Britney fans out there will be happy to know that Heather Morris delivers plenty of her signature one-liners as the dim-witted Cheerio. "There were a couple that she improved that I wasn't allowed to include in the film because they were too risque. She came up with one liners on the spot, it was great," Tancharoen told the interviewer.

Good news for Warbler fans, as well! "If you're a big warbler fan you're gonna love the film because hey have a very big role in the film," the director explained. And can you believe it? The viral video sensation known as the mini-Warbler will also be featured in 'Glee: The 3D Concert Movie'! "We even went so far as to recruit another Warbler called the mini-Warbler," Tancharoen said of 3-year-old Kellan Sarmiento. "He's amazing ... Blaine loves him," and the director even shared that Blaine, aka Darren Criss, interviews him!

Although there will be plenty of appearances from the New Directions and the Warblers, the 'Glee' director went on to share the sad (or happy? we're not sure) news that there will be no sign of Sue Sylvester in the show. "We wanted to have her in the film but her character is so mean -- very funny, but mean --  to the cast that it didn't work with how high-spirited the film is," Tancharoen said.

Gleeks will also get some love in the concert film! "We went and shot three super fans who have been affected by 'Glee' the show. We asked them a bunch of questions and we interviewed them and we tied them in with the live show. We want Glee to feel like [a] universe that you can be a part of … It is a community," Tancharoen said during the closing question.

'Glee: The 3D Concert Movie' sounds like it is going to quite the spectacle, so make sure you buy your tickets early for this limited engagement!

Watch the 'Glee: The 3D Concert Movie' Trailer