Heath: Michelle's a 'Perfect Mom'

Heath Ledger called his girlfriend, Michelle Williams, "the perfect mom" to the couple's daughter, Matilda, during an appearance on The Oprah Winfrey Show Friday.

Ledger, who was promoting Brokeback Mountain with Williams and costars Jake Gyllenhaal and Anne Hathaway, said of his new family: "I'm so proud. I just fall deeper and deeper in love with both my girls."

Of the baby, Matilda, former Dawson's Creek star Williams said, "She looks like her dad." On the duties of motherhood, she added: "We started promoting the movie about three weeks after she was born, which was too soon. I'm just learning lessons now, like learning how to be a working mom."

Source: PEOPLE