Ryan Reynolds has revealed why he seemed so unhappy in that now infamous Instagram picture taken during Taylor Swift's Independence Day party in July.

The image – which rapidly went viral – showed a seriously downtrodden Reynolds amongst a sea of lovestruck faces, including his wife Blake Lively, friend Swift and her then-boyfriend, Tom Hiddleston.

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The photo became meme fodder across Twitter with fans suggesting that Reynolds really didn't want to be sitting beside the canoodling couple. However, the actor cleared up his "sad face" in an interview over the weekend.

"That's a problem I've had all my life," he told Entertainment Weekly. "If I'm not aware a photo is being taken, my natural resting face is one of a man dying. I had no idea somebody was taking a photo. Therefore I was resting comfortably in my persona of a man whose soul is visibly exiting this earth."

From: Harper's BAZAAR UK