Charlize Theron, Seth MacFarlane Go on Sushi Date: Picture

Charlize Theron and Seth Macfarlane were seen leaving dinner together at "Matsuhisa" Restaurant in Beverly Hills SPW/Splash News Online

At the Oscars back in February, Charlize Theron joined host Seth MacFarlane for an opening-number routine — dancing elegantly with Channing Tatum. A month and a half later, Theron and MacFarlane hung out one-on-one in Beverly Hills — grabbing sushi at Matsuhisa.

The Oscar-winning actress, 37, and the Family Guy creator, 39, had a least one thing to discuss over dinner: A Million Ways to Die in the West, the new Western film in which they'll costar and begin shooting next month.

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Their romantic status, so far, is to be determined. During an Oscars after party in Hollywood Feb. 24, the Prometheus star seemed "very flirty" with MacFarlane, who recently ended a casual relationship with Game of Thrones actress Emilia Clarke. Theron's last known serious relationship was with actor Stuart Townsend; she and her Head in the Clouds costar ended their nine-year romance back in 2010.

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The main man in Theron's life right now: Adorable son Jackson, who celebrated his second birthday in Hollywood shortly before the Oscars.

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"Charlize is the nicest person on earth," an insider told Us of the hands-on, South African beauty. "She's gorgeous and relaxed and sweet."

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