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Josh Hartnett hung with a pal in Malibu Saturday, leaving girlfriend Amanda Seyfried all by her lonesome.

The hunky actor recently ditched his agents at CAA and is shopping around for new representation. Hartnett turned down the role of Superman years ago -- a franchise that could have netted him $100 million. At the time, he said he didn't want to be defined by such an iconic role. Since then, he's done a few big films and a few smaller, indie films, but agencies in Hollywood are betting he can come back big if he takes on one or two big-budget studio films, so they're all vying for his business.

What role do YOU think Hartnett should play ... other than that of Amanda Seyfried's boyfriend?!