The pair look "genuinely happy together" as they smile and briefly hold hands

By Jennifer Garcia
March 10, 2011 02:15 PM
Steve Granitz/WireImage; Frazer Harrison/Getty

Sean Penn and Scarlett Johansson have reunited, this time for a late, cozy dinner at Hollywood’s celebrated Chateau Marmont.

The two, who jetted off to Mexico for a day together last week, greeted each other at the hotel restaurant with a hug. They were all smiles and chatted quietly for several minutes before moving from one table to a more private setting in the back corner.

Both dressed casually, Penn, 50, and Johansson, 26, appeared at ease with one another as they talked, smiled and remained focused on each other.

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The rumored couple kept the PDA to a minimum, but occasionally held hands on the table for brief moments at a time, according to an observer. Over glasses of red wine and dinner – salad for her and a burger for him – they chatted quietly.

“They looked genuinely happy together,” added the observer.

After 11 p.m., when their meal wrapped up, Penn and Johansson slowly wandered into the hotel lobby, with Penn putting his arm around her lower back as they made their way inside and eventually downstairs to the valet.

Johansson is currently working in L.A. on the film We Bought a Zoo, with Matt Damon. Penn is reportedly planning a trip to Haiti, where he’s been spending time helping in relief efforts since the devastating earthquake there.

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