Halle Berry

(TMZ) - Halle Berry filed for divorce from Olivier Martinez  ... TMZ has learned.

TMZ reports Halle cited irreconcilable differences. As for money, TMZ says it's not an issue because the couple had a prenup.

A source close to the couple tells TMZ, "They have a personality difference."  And the incident at LAX, where Olivier hit a guy with a car seat, exacerbated their conflicts. Olivier got sued for the incident last week and sources tell TMZ the couple argued about the suit, and it became a breaking point.

One source tells TMZ that the 2-year marriage went into a tailspin a week ago ... to the point each of them had had it with the marriage, but Halle filed first. 

Another source said, "They're just very, very different people.  He's a very macho guy, and things just didn't jive.:"

The couple issued a joint statement that doesn't deal with the issues we're reporting.  The statement says:

"It is with a heavy heart that we have come to the decision to divorce. We move forward with love and respect for one another and the shared focus for what is best for our son.  We wish each other nothing but happiness in life, and we hope that you respect our, and most importantly our children's privacy, as we go through this difficult period."

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