Rumors have been flying over the status of heartthrob Ryan Gosling's relationship with his Place Beyond the Pines co-star Eva Mendes ever since the actress was a no-show at the Cannes Film Festival, and now, a new rumor claims the actor dumped her for another woman -- the star of his directorial debut, Lost River.

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The report, originally on KPopStarz, alleges that the actor may be trying to woo Christina Hendricks, the curvy red-headed star of his movie who also stars on Mad Men, and as a result, he dumped Mendes to make himself more available.

It was noted on the site that Gosling is known for dating co-stars. Not only did he date Mendes, but he has also had past relationships with both his The Notebook co-star Rachel McAdams and Murder by Numbers co-star Sandra Bullock.

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As proof that Gosling is wooing Hendricks, the website used photos of the two together at Cannes as they hugged and laughed together while doing promotion for their film.

However, the report is likely not true, as Hendricks is reportedly happily married to Geoffrey Arend since 2009, and he was also present at the film festival, photographed next to his wife on the red carpet of the film's premiere.

It wouldn't be the first time split rumors surfaced concerning Gosling and Mendes, especially ones which claimed he was trying to connect with another woman. In fact, back in March, he was reportedly reconnecting with McAdams.

Sources told OK! Magazine in March that McAdams was trying to win Gosling back, and that he has been somewhat receptive to the idea.

"Rachel has been very low-key about it all," the source said at the time. "She's played it very smart and used the whole 'just friends' angle to get close to Ryan again, but she 100 percent wants him back. He's not the cheating type, but he hasn't been honest with Eva about how much contact he has with Rachel."

Though Gosling isn't allegedly the cheating type, a recent Cosmopolitan article claimed he could be a cheater simply because of his name. The website quoted a poll of 2000 women on siteopia.com, which pegged the top ten names of men who are most likely to cheat on a partner.

Ryan came in third on the list, behind Wayne and Liam. The other names included Matt, Craig, Steve, Scott, Dean, Mark and Lee.

Gosling and McAdams' relationship, which ended after two years back in 2007, has been known as one which Gosling looks back at fondly. In an interview with GQ shortly after the couple broke up, he even called McAdams one of the great loves of his life.

"I mean, God bless The Notebook," Gosling said at the time. "It introduced me to one of the great loves of my life. But people do Rachel and me a disservice by assuming we were anything like the people in that movie. Rachel and my love story is a hell of a lot more romantic than that."

Tags: ryan gosling Eva Mendes