If this particular Hollywood coupling is news to you, you are not alone. The relationship lasted from the end of 2001 to 2003 – which feels like a long, long time ago now. So we’ve deep dived.
The pair met on the set of the 2002 psychological thriller Murder By Numbers, which they co-starred in.
It was not your typical case of on-screen couple becomes off-screen couple, however. Bullock (who was 37 in 2001) played a cop chasing a young rich kid played by Gosling (then 21), who she suspected of murdering a young girl. Not exactly the recipe for romance.
But the pair became close, and first debuted as what looked an awful lot like a couple in September 2001 at the premiere of then not quite 21-year-old Gosling's film The Believer.
They were next photographed together at the Murder By Numbers wrap party in April 2002 and the following month at the Cannes premiere of the film.
The 16-year age gap turned a few heads at the time, and the pair remained pretty coy on their relationship.
In a 2003 Cosmopolitan interview, the actress dropped the word "just" so she'd be telling the truth (they could be friends and lovers after all) when she said they were friends.
"Let me see if I can answer that politically and correctly. We're friends," saying that adding "just" would "probably be a bit of a lie".
"So I'd say we're friends."