Dennis Quaid's wife Kimberly Buffington-Quaid has filed for divorce from the actor, after eight years of marriage, TMZ reports.

According to divorce documents filed by the soon-to-be ex Mrs. Quaid, "The marriage has become insupportable because of discord or conflict of personalities ... that destroys the legitimate ends of the marriage relationship and prevents any reasonable expectation of reconciliation."

There is also a temporary custody order in place, so that both Dennis and Kimberly can split their time with their 4-year-old twins, who nearly died shortly after birth because the medial staff at Cedars-Sinai gave them an accidental overdose of the drug Heparin.

The temporary order also gives Kimberly possession of their main house and the Mercedes, while Quaid will get the Cadillac Escalade and a condo.

The temporary order says, "The parties shall cooperate with one another in using the Range Rover..." and the ex-couple are also ordered not to say anything "vulgar, profane, obscene or indecent" to each other.

Dennis and Kimberly tied the knot in 2004.

Dennis Quaid and his wife Kim were spotted out and about in Beverly Hills last night, and even though she was sporting a cast on her foot (bright pink, natch), the two appeared to be having a good time. Dennis assisted Kim into into their SUV and grabbed her crutches, and we're not sure what caused the injury, but hopefully she heals quickly!

Dennis Quaid got pissed at a car he thought was running into him at a stop sign in Los Angeles yesterday.

Even though the car missed hitting the actor's Escalade, Dennis felt the need to stop and cuss him out from the window of his car.

Can't we all just get along?

Dennis Quaid probably thought he was going to enjoy a nice romantic meal with his wife Kimberly last night, but since a certain other Kimberly was having her birthday bash at Philippe Chow, there were hordes of photographers camped outside the restaurant. Dennis seemed overwhelmed by all the attention as he made his way into the hip eatery, but the real excitement happened when he left!

X17 photographers tell us that just as soon as Dennis climbed into his SUV and got behind the wheel, a cop pulled up next to him in the parking lot. The cop noticed that Dennis had a little too much to drink, and he told him several times to get out of the car. Dennis seemed scared at first, but when he asked if he could get out and go back into the restaurant to call a cab, the officer said yes and let him go.

Technically Dennis could have gotten a DUI as he moved the car a few inches, but it looks like the cop was in a good mood last night! Either that or he was giving Dennis special treatment because he was famous...

Dennis Quaid was spotted out and about in Hollywood yesterday, looking not exactly out of place on the boulevard, in his dirty t-shirt and jeans, buying celebrity gossip rags like Star.

I never figured 55-year-old Dennis Quaid would be the type to keep up on all the Hollywood gossip, but I guess since he and his fam are so frequently in the news, it's a good thing to see what's being said out there!

Or maybe he just really wants to know the juicy deets on the alleged JT/Rihanna hookup!

Hey, you can't blame us for almost mistaking Dennis' wife Kimberly Buffington for his daughter, she looks young enough to be a Lindsay Lohan doppleganger!

Course, Lindsay looks 30 these days, so maybe that's not saying much!

Dennis Quaid and his wife have agreed to a $750,000 settlement with the hospital that gave his newborn twins a nearly lethal dose of blood thinner, according to the Associated Press.

A petition filed in Los Angeles Superior Court on Monday shows the Quaids and Cedars-Sinai Medical Center have agreed on the parents' damages, but can still file claims on behalf of their children.

Cedars-Sinai is not admitting wrongdoing as part of the settlement.

The Quaids sued drug maker Baxter Healthcare Corp. in Illinois over the drug's packaging, but that case was thrown out.

The petition filed Monday indicates Baxter may also sue Cedars-Sinai, which administered too much Heparin to several patients, including the Quaid twins, in November 2007.

Looks like Dennis Quaid is having a blast in Sin City! The other night the actor dined at Nobu, played some poker at The Hard Rock Hotel and Casino, and finally enjoyed the Patriots game at the Hard Rock bar. We're jealous!