Don't you just hate when you're walking down the street minding your own business when a gust of wind flashes your unmentionables for all to see?

Now imagine that happens to you, but you're Jessica Chastain and you're filming a movie in front of a crowd of people.

Thanks a lot, Wind of Perv!

Unfortunately, that's exactly what happened to the actress while shooting 'The Disappearance of Eleanor Rigby,' when a breeze decided to show off her flesh-toned panties to a crowd of onlookers.

They came to see a movie shoot, and they left with a mental image of Jessica Chastain's undies forever seared in their brain. Not a bad day -- for them, anyway.

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