Olivia Munn is in awe of Kate Middleton 's strength.

More than one year after the Newsroom alum shared her breast cancer diagnosis , she gave a royally sweet shout-out to the Princess of Wales for being candid about her own cancer journey .

"What really meant a lot was to hear Princess Kate Middleton say how difficult the phase after cancer treatment is," Olivia told E! News in an exclusive interview. "Because those of us going through it understand that this second part of the journey can be really difficult and exhausting."

The 45-year-old—who shares kids Malcolm , 3, and Méi , 13 months, with husband John Mulaney , 43—emphasized that it's because having cancer is a lifelong journey.

"Before with the treatment, I knew there was like, 'OK, you have t

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