Watch: Miley Cyrus defends VMAs performance to Britney Spears

Britney Spears and Miley Cyrus in a scene from MTV's "Miley: The Movement."

We get a look at Miley Cyrus in just a minute and 36 seconds -- the length of the new trailer for the upcoming MTV documentary, "Miley: The Movement."

The newly-single Cyrus is heard saying how nervous she is as she walks onstage at the MTV Video Music Awards.

She's also seen sitting down in the studio, chatting with Britney Spears, one of the collaborators on her upcoming "Bangerz" album, where she reflects on the reaction following this year's VMAs. "Everyone takes the VMAs so serious," Cyrus, 20, tells Spears, 31. "I just wanna come out and shoot a hot dog gun. I just wanna have fun!"

The documentary features rehearsals, interviews and backstage moments. "I have the freedom to do whatever I want because I'm starting as a new artist right now," says the former "Hannah Montana" star.

And just in case you weren't sure just what Cyrus' motive has been lately...

"You're always going to make people talk, so you might as well make them talk for like two weeks rather than two seconds," Cyrus says. OK, Miley -- you got us. We're still talking...

"Miley: The Movement" premieres Oct. 10 at 10 p.m. on MTV.

"Bangerz" arrives on Oct. 8, featuring the singles "We Can't Stop" and "Wrecking Ball."

Check out the trailer below: