Are Charlize Theron and Keanu Reeves more than just good pals?

The stars dined together at Beverly Hills' Bouchon restaurant on Monday -- and bid one another adieu with an extra-long embrace and tender cheek kisses. (TMZ has video of their long goodbye.)

PHOTOS: Are Charlize, Sandra Bullock and Halle Berry "cursed"?

In an extra-intimate gesture, Theron had her hands beneath Reeves' jacket as they hugged.

Theron, 34, and Reeves, 45, played lovers in the weepy 2001 drama Sweet November.

In January, Oscar-winner Theron split from Stuart Townsend, her partner of nearly six years.

Reeves has never been married and has been resolutely private about his romantic life.

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