Rachel McAdams and Ryan Gosling broke up in 2008 and Jake Gyllenhaal has been linked to every starlet to pass through Hollywood in the past 8 years, so neither is any stranger to high-profile relationships.
So have Rachel and Gyllenhall teamed up to form the ultimate young-Hollywood power couple?
No, says a source close to the couple, but reports from Pittsburgh where Rachel and Jake are filming a movie together seem to suggest otherwise/
First, there's this photo of the two of them dining out together that was snapped by a fan and posted to Instagram:
Yes, they're co-workers, but how often do you go out for late-night meals with just one co-worker of the opposite sex in whom you have zero romantic interest? Exactly.
Then, there are reports that such outings are not uncommon for Jake and Rachel, and the two frequently spend a lot of time together on set before setting off for private evenings alone.
The most damning evidence of all, of course, is that these two compulsively date other actors.
McAdams split from Michael Sheen just last year. The former couple met on the set of Midnight in Paris.
For his part, Gyllenhaal broke up with Reese Witherspoon in 2009 after two years of dating. Of course, Jake also dated Taylor Swift, but who hasn't?: