At a TODAY Show Radio Town Hall, Lindsay Lohan reflected on the powerful on-set advice Jamie Lee Curtis gave her during Freaky Friday — and how it continues to guide her 20 years later.

"It's a four-way switch," Curtis said. "Lindsay's character Anna, the music producer, is engaged to be married to a young man named Eric. He happens to have a 15-year-old daughter and Anna has a 15-year-old daughter named Harper. The soon-to-be sisters don't get along very well."