Kathy Bates shocked to learn she did thank her mother in her Oscar speech for "Misery"

Kathy Bates won an Oscar in 1991 for her magnificent performance in the Stephen King thriller "Misery" – but it wasn't until recently that she realized she'd thanked her mother in her acceptance speech.

In an interview with "CBS Sunday Morning," Bates told Turner Classic Movies host Ben Mankiewicz that her parents had sacrificed a lot for her to study to become an actress. But she also noted that – despite receiving a Tony Award nomination for "'Night, Mother," and then an Academy Award – her mother's reaction to her success was less than charitable. 

"When I won the Oscar for 'Misery,' she said, 'I don't know what all the excitement about. You didn't discover the cure for cancer,'" she told "Sunday Morning."