Rachel McAdams ‘cannot wait to see’ the musical film version of Mean Girls – and reveals Tina Fey wanted her to be in it but it was ‘tough to make it work’

Rachel McAdams has admitted she was in talks to star in the new musical film version of Mean Girls, but it was too “hard” to figure it out with creator Tina Fey.

“Tina and I were experimenting with a few ideas, but it was difficult to make it all work in the end,” the Oscar-nominated star said Variety.

Adding, “I was really up for whatever she wanted to do. I think the direction it has gone will be fantastic and I can't wait to see it.”

It was initially reported that talks of an original cast reunion for the film fell through due to money.

Some movie fans are confused about the marketing for the upcoming reboot, as the movie isn't labeled as a “musical” despite being from a Broadway show.

Tina Fey, who wrote the screenplay for the film, then helped turn it into a Broadway musical with melodies by her husband Jeff Richmond and lyrics by Neil Benjamin.

Now the show has been adapted into its own movie – which on current billboards is simply called 'Mean Girls' – with a screenplay re-written by Tina, which will hit theaters next month.

In addition to writing the script, Tina also reprises her role as high school math teacher Mrs. Norbury, which she originated in the 2004 film.

Meanwhile, Rachel has also revealed the real reason why she turned down the chance to star in the recent Mean Girls reunion commercial with her old co-stars.

Mean Girls the musical film stars Avantika, Bebe Wood, Jaquel Spivey, Christopher Briney, Angourie Rice, Renea Rapp, Tina Fey and Auli'i Cravalho

Oscar-nominated star Rachel passed on the musical reboot and a reunion commercial

Lindsay Lohan, Amanda Seyfried and Lacey Chabert all came together for a Walmart ad last month to promote the big box chain's Black Friday sales.

But Rachel, who delivered a scene-stealing performance in Mean Girls as reigning bully Regina George, was nowhere to be seen.

Now, in a new interview with Varietythe 45-year-old has revealed the thought that led her to say no when she was offered the commercial.

'Don't know; I don't think I was that excited about doing a commercial, if I'm completely honest,” The Notebook star said.

“A movie sounded great, but I've never done commercials before and it just didn't feel like my bag,” the Doctor Strange actress added.

“Also…I didn't know everyone did it. Of course, I would always love to be part of a Mean Girls reunion and stick to my plastic, but yeah, I found that out later,” Rachel explained to the trade magazine.

In the original 2004 film Mean Girls, “plastic” was the nickname given to Regina's popular clique, which Lindsay Lohan's character decides to infiltrate.

Lindsay Lohan (center), Amanda Seyfried (right) and Lacey Chabert (left) all came together for a Walmart ad last month to promote the big box chain's Black Friday sales

In the original 2004 film Mean Girls, Lindsay's character (second Friday right) infiltrates a cabal called the “plastics” consisting of (from left) the characters Lacey, Rachel and Amanda.

Rachel's recent films include Are You There God? It's Me, Margaret, based on the book of the same name by Judy Blume.

Abby Ryder Fortson stars in the title role, while Rachel plays her mother amid a cast that includes Kathy Bates and Benny Safdie.

Set in the early 1970s, when the book was first released, the film bowed in April and flopped at the box office despite a critical reception.

This year, Rachel also played a heightened version of herself in the FXX sitcom Dave, starring rapper and comedian Lil Dicky.