Couple are just friends
The pair sparked speculation of a real-life romance when snapped holding hands at the photocall for new movie Blue Valentine at the Cannes Film Festival on Tuesday.
But a rep for Ryan, 29, insists they are just friends.
‘He is cosy with everyone,’ the spokesperson tells People.
Ryan previously dated The Notebook co-star Rachel McAdams, 31.
Michelle, 29, split from director Spike Jonze in September 2009.
She is mum to Matilda, 4, with the late Heath Ledger.
SEE VIDEO Ryan Gosling and Michelle Williams get close in Cannes…