Thanks, Page Six for giving us only half the story about Josh Hartnett and Scarlett Johansson reuniting. Alas, today we got the rest of the deets: Scar and Josh were seen making out, but they're not back together. Instead they're in an "open relationship," Page Six reports.

This news comes in light of reports that Josh was seen hooking up with Leonardo DiCaprio's ex, supermodel Gisele Bundchen on Saturday night in NYC. "They were all over each other," a spy says.

We think Josh needs a break from the ladies -- how about 40 Days and 40 Nights?