Rob Marshall's film adaptation of Into the Woods doesn't hit theaters until next week, but Sondheim superfans have been clucking for months about every little change.

Sondheim, librettist James Lapin and director James Marshall have been in press overdrive assuring fans the show is the one they know and love—and any tweaks will make perfect sense. "I think people who love the show are going to be very, very happy with the film," Lapine told EW.

Related: 8 Wishes From The Cast Of "Into The Woods"

But will the revisions help translate the show to the big screen or turn it into something unrecognizable? We'll all have our opinion come December 25, but here are seven changes we know for sure.

Spoilers, duh!

1. There's no narrator

Traditionally, the Narrator opens the show, introduces the characters and comments on the action. He's gone from the movie, as is his alter ego, the Mysterious Man.

According to director Rob Marshall, there is some voice-over narration in the film but it's by James Corden, who plays the Baker.

2. We learn how the Witch got wicked

Shades of Maleficent! According to Playbill, Into the Woods opens with the back story of the Witch (Meryl Streep).

3. "Giants in the Sky" has new lyrics

At least three songs have been reconceived: Cinderella's "On the Steps of the Palace" has been reworked as a fantasy sequence she imagines as she flees the ball. (The song's lyrics have been updated to fit the present tense.)

And with a movie-sized budget, Jack won't just sing about "Giants in the Sky"—we'll meet the lumbering titans in a special-effect-heavy flashback.

4. Little Red Riding Hood is pretty little

Unlike last summer's Public Theater production of Woods, where LRRH sported a revved-up sex drive and major cleavage, this little girl really is a little girl. Marshall said he intentionally went younger because "I really feel this is a piece about parents and children. And I felt it would be odd not to have children in the piece."

YouTube star Sophia Grace, 10, was originally cast as Red, but she was replaced by teenager Lilla Crawford, who starred in the recent revival of Annie on Broadway.

"Once you realize that there's this seduction going on with the Wolf, you realize the story is really about a girl in puberty, and becoming a woman and becoming more of an adult and responsible," says librettist James Lapine. "Someone that young might not have been telling the story the way it should be told. Also, you don't want to see Johnny Depp having that relationship with somebody maybe that young."

5. "Ever After" is gone.

The song usually ends the first act, but it's been dropped completely. You can still catch the tune, though, which remains as  instrumental music.

6. Sondheim wrote a new song for Meryl Streep

"She'll Be Back" a new number Sondheim wrote expressly for Streep's Witch, has been cut, but will appear on the DVD release. "Meryl does the song so brilliantly and it's a beautiful song," says Marshall. "But it was very clear to all of us, including Steve and James, that it stopped the action."

"Rainbows," another new song, was also eliminated—but fans will be happy to know "Any Moment", previously reported to have been nixed, is intact in the film.

7. Rapunzel doesn't die

One change superfans are already livid about is the fact that Rapunzel won't meet her fatal fate in the film version. "Disney said, we don't want Rapunzel to die," confessed Sondheim.

Marshall is more sanguine about rescuing the long-locked maiden: "Rapunzel's end is still pretty dark, it's just a different kind of dark, and it's just as harrowing, and just as sad."

He admits he felt "a little nervous" about her demise in the stage musical. "[It felt like]  her death was treated in some ways as a joke," he says "Our film does not have a cartoon sensibility. I really wanted to make sure that the relationship with Rapunzel was real and you felt the loss, and there is a loss."