Martin Sheen’s awesome reaction to Mischa Barton’s nip-slip

Now here’s a striking image. While on hand for a screening of her film “Bhopal: A Prayer for Rain” in Hollywood, Mischa Barton suffered a bit of a revealing wardrobe malfunction when the plunging neckline of her blouse plunged a little too far and revealed her nipple. Which would’ve been embarrassing but not really newsworthy, except for the fact that co-star Martin Sheen noticed — and noticed big-time. His expression is priceless, no?

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