Marty McFly’s journey from 1985 to 1955 via a plutonium-powered time-traveling DeLorean is impressive. But try bouncing from a pop star version of 1500s English queen Anne Boleyn to a drunk 1985 housewife to a lusty 1955 teenager.

Recently Methuen’s own Zan Berube jumped from her starring role in the national tour of musical “Six” to playing Lorraine Baines in the first touring edition of Broadway blockbuster “Back to the Future” — July 8 to 20 at the Citizens Opera House.

“I had a nine day transition period from my last show in ‘Six’ to my first rehearsal for ‘Back to the Future’ so that was crazy,” Berube told the Boston Herald. “Transitioning from a pop star Tudor queen to a 17-year-old girl based off of a movie character, it was a 180.”

Berube, who went to Walnut Hill School of the Arts in Natick, spent months learning to sing, dance, strut, and hold a microphone like a modern pop diva. Suddenly, she was back relying on her University of Michigan musical theater degree and acting chops.

“I also had to do a lot of people-watching because I also play a 47-year-old,” she said. “It’s about being observant, watching what it’s like to have three kids or, she’s drunk at the beginning of the show, so what it’s like to have alcohol (constantly) in your hand.”

The most unbelievable thing about all of this is that the musical version of “Back to the Future” is good. Adapting movies into musicals has a mixed record. Despite the massive expectations, “Back to the Future” has been well received by old and new fans. Berube counts herself as a fan of Robert Zemeckis’ film starring Michael J. Fox, Christopher Lloyd, and Lea Thompson.

“I remember when I first got the (audition) all of the iconic scenes from the movie came flooding back, the car chase, the plutonium, Doc Brown, the iconic red vest that Marty wears,” Berube said.

Berube was shocked at the meticulous attention the creative team paid to both recreating and reinventing the movie for the stage.

“As a spectator in the audience, I was like, ‘Gosh, how is that happening on stage right now, that is an actual car up there,’ ” she said. “Then when I got into rehearsals and saw the care, the way they treated this show like it was their child, it wasn’t surprising what they could do. The writer and creator (of the film) Bob Gale was in the room with us every single day of rehearsals to make sure that this project he knows and loves is maintained.”

Gale, who co-wrote and co-produced the film trilogy, wasn’t the only heavyweight involved. While the musical includes songs from the move, including a pair from Huey Lewis, the originals were conceived by songwriter/producer Glen Ballard (Alanis Morissette, Aerosmith, Kelly Clarkson) and film composer Alan Silvestri (“Back to the Future,” “Forrest Gump,” “The Avengers”).

“I can’t believe I get to sing this material,” Berube said. “They’ve created some gorgeous new music for the show that we get to sing every single night in the show.”

Like the original film, spectacle is a big part of the production (see that time-traveling DeLorean). But musicals don’t work without digging into the small and exploring humanity and our relationships. Berube says that’s all here.

“It is a very technically heavy show and people leave in awe of that,” she said. “But it’s really a story about love. It’s a story about Marty McFly and Doc Brown’s friendship… It’s about Marty needing to save his family and Lorraine and George’s love story.”

It’s also about, she notes, “fixing the space time continuum.” Which is something no other musical can claim to be about.

For tickets and details, visit https://boston.broadway.com/