“I’m a veterinarian,” he toldHollywoodChicagoin 2011.

“Being in the film industry as a child was hard, and I couldn’t keep it going.

But in the end leaving was the right decision.”

Gene Wilder and Peter Ostrum on the set of “Willy Wonka & the Chocolate Factory”

It’s okay to change your mind."

However, he hasn’t completely left behind his memories of working on the film or its legacy.

He’s also appeared at conventions, like the Chicago Wizard World Comic Con in 2011.

Peter Ostrum holding a Golden Ticket

Clearly, he knows his performance left a great impact.

And we just smiled at each other."