VIDEO : Dakota Johnson Asks David Letterman, 'Are You My Dad?'

The Fifty Shades of Grey star was a guest on CBS' Late Show Tuesday, and she was quick to remind him that her mom, Melanie Griffith, is a big fan. "On the way here, my mom told me to tell you that she loves you. She really meant it!" "I know," he said. "And here's something I will tell you. Your mom used to come on the show all the time, and I really loved your mom." "She brought you handcuffs one time," said Dakota with a sly smile. "Yep...so, are you my dad?"