Anne Hathaway is sharing her tribute to Alan Arkin, whom she starred with in Get Smart.

The 40-year-old actress shared her thoughts on Instagram, alongside a headshot of Alan, who passed away at 89 this week.

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“Alan Arkin was a gem of a person, and I am so lucky to have gotten to work with him on Get Smart,” Anne started out. “He was kind, soulful, supportive, a pro’s pro, generous, genuine, wise, inquisitive, and a fantastic example of how to be an artist.”

She went on, writing that “he left a huge impression on my then twenty-three year old self and is at the center of some of my most cherished and fond career memories.”

“I’m sending love and sympathy to his family (who are gems themselves),” Anne concluded.

In addition to Anne, Alan‘s former co-stars Abigail Breslin and Michael Douglas also paid tribute to him on social media.