Often considered one of the best comedies of the ‘90s, Tommy Boy is a movie with no shortage of great actors giving iconic and outrageous-yet-hilarious performances. That includes Bo Derek, who famously played Beverly Burns-Barish, Chris Farley’s on-screen step-mother who tried to take Callahan Auto for all it was worth. However, it turns out that the 10 star wasn’t the first choice for the part.

I recently sat down with Derek to talk all about Tommy Boy, which celebrates its 30th anniversary on March 30th, and in the middle of our chat, she told me a behind-the-scenes story I’ve never heard before. Basically, as Derek put it, she didn’t get the part until right before the start of shooting