Romantic Sienna Miller had to hide under a blanket during a recent flight back to her native Britain from Rome, Italy - so that no one would catch her sobbing.

The actress admits she was watching classic movie romance Love Story on the plane and she forgot how sad the ending was.

Miller explains, "I love old movies and I had to watch Love Story. I suddenly remembered that she (character played by Ali MacGraw) dies and I had to put the blanket over my head to finish watching because I was just sobbing. I get very moved... It was terribly embarrassing."

-Sienna Miller Pictures

(This news article provided by World Entertainment News Network)