Kathryn co-starred as Cassie Lang in Ant-Man and the Wasp: Quantumania 2023, followed by Lisa Frankenstein starring alongside Cole Sprouse and Winner starring Emilia Jones, with release dates sometime in 2023. She can be seen as the lead of Amazon's The Map of Tiny Perfect Things, on Prime Video. In the fall of 2020, Kathryn starred opposite Vince Vaughn in Universal's highly anticipated horror-comedy Freaky, in which she starred as a high schooler who switches bodies with the local serial killer, played by Vaughn.

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