The 38-year-old actress has proved her good looks can be deemed deadly after she admitted a gentleman couldn't take his eyes off her and ended up smashing into the curb.
When asked how men react to her beauty, she told Conan O'Brien on 'Conan Monday': "I had one incident, but this was years ago. It was summer and I'd just gone out and bought this little wispy, white summer dress, and I was going out to meet my friends at a British pub, and my friend Louis was waiting for me outside.
"This guy was riding a bike by and he starts staring at me. Louis is watching it from a distance and he said the whole thing went in slow-mo. The guy just hit the curb and flew off his bike into the street. But this was one incident!"
Meanwhile, the 'Mad Men' star recently admitted that she struggles to deal with all the attention she gets and has to remind herself regularly to pretend she knows the people.
She said previously: "Just walk down the hall and try to imagine that you everyone is looking at you."