We may not know a lot about Disney's various live-action Marvel Cinematic Universe series, but thanks to Elizabeth Olsen, we have a bit more information on the upcoming WandaVision.During the purple carpet event at the Avengers: Endgame premiere, the Scarlet Witch actor teased the atmosphere of the upcoming series, which will reunite Olsen with Vision actor Paul Bettany.

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"There's quite a few other comic books that we're pulling from," Olsen told Variety. "It's going to be Wanda and the Vision, and I think at the Disney+ launch chat they showed a photo of us in the 1950s' and I think that's a good teaser. It's gonna be really fun, I'm really excited."

When asked what the theme song for the series would be, Olsen didn't hesitate to break into a typical '50s television show theme song, further indicating the Disiney+ series' tone.

Olsen also revealed that WandaVision will begin shooting in the fall, adding, "I think it's gonna be a total of six hours. I don't know what the episodes are."

While this seems to indicate a six-episode season, that number could change depending on the length of the episodes themselves. Still, this is the first indication we've had of how long the Disney+'s MCU series will run for, and it could mean other announced projects such as Falcon and Winter Soldier and the upcoming Hawkeye series will have similar runtimes.

Since both Wanda and the Vision are currently dead in the MCU, it's not yet known if the series will be set in the past, or another reality altogether. However, more answers will inevitably come once Avengers: Endgame hits theaters.

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Directed by Joe and Anthony Russo, Avengers: Endgame stars Robert Downey Jr. as Iron Man, Chris Evans as Captain America, Mark Ruffalo as Bruce Banner, Chris Hemsworth as Thor, Scarlett Johansson as Black Widow, Jeremy Renner as Hawkeye, Brie Larson as Captain Marvel, Paul Rudd as Ant-Man, Don Cheadle as War Machine, Karen Gillan as Nebula, Danai Gurira as Okoye and Bradley Cooper as Rocket, with Gwyneth Paltrow Pepper Potts, Jon Favreau as Happy Hogan, Benedict Wong as Wong, Tessa Thompson as Valkyrie and Josh Brolin as Thanos. The film opens Friday worldwide.