The Quantum Realm is calling and Michelle Pfeiffer is getting in shape.

On Sunday, the actress shared a video on Instagram of her training regimen for the upcoming Marvel sequel “Ant-Man and the Wasp: Quantumania”.

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“Janet van Dyne, entering the Quantum Realm this summer,” Pfeiffer says in the video. “I’ll be ready.”

The 63-year-old then hits the start button on her treadmill and begins running.

Pfeiffer joined the franchise with the first sequel, “Ant-Man and the Wasp”, playing the mother of Evangeline Lilly’s character Hope van Dyne, a.k.a. Wasp.

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“Quantumania” is currently planned for release on Feb. 17, 2023, with production expected to begin this July.

The film will also feature returning stars Lilly, Paul Rudd, and Michael Douglas.