Abigail Breslin lovingly honored Alan Arkin on Instagram following his death last week at age 89.

Arkin played Breslin's grandfather in Little Miss Sunshine, an unforgettable role for which he won an Academy Award.

Breslin shared a sweet throwback photo of the two and captioned her tribute:

"Alan Arkin was one of the kindest, wittiest and most lovely human beings I have had the privilege of working with."

She then shared a story from the set of their film that perfectly captured his character.

"I remember when we were doing the 'am I pretty?' scene in Little Miss Sunshine and on the first take, he yelled out to 'cut!' and get my mother immediately because I was crying. I said, 'No, Alan I'm acting!', and he cracked up."

"I love that story because that's who Alan was. He cared deeply about his work, but above all and most importantly, he was a genuinely kind and thoughtful man."

Breslin finished her post:

"Dearest, Alan... you will be profoundly missed. Thank you for everything. My sincerest condolences and love are sent to his family, including his beautiful wife Suzanne."

"Although we were not related in real life, you will always be 'Grandpa' in my heart. Rest peacefully. <3"

Viewers of Breslin's post expressed their fondness for the Little Miss Sunshine duo.

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

Others sent their condolences and commended Breslin for her lovely tribute to Arkin.

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

@abbienormal9/Instagram

Arkin's impressive career spanned seven decades. Aside from Little Miss Sunshine, other memorable performances include his roles in Glengarry Glen Ross, The Heart is a Lonely Hunter, Catch-22, Grosse Pointe Blank and Argo.