Michelle Williams
© AFP/Getty Images/File14 December 2007 (Bang) - The former Dawson's Creek actress and Ryan enjoyed a dinner at New York restaurant Piadina and onlookers claim they couldn't keep their hands off one another.
One said: "They were both smiling and he was gazing at her. They looked very much a couple."
The pair then went outside to have a cigarette and were seen huddled up together.
Both their representatives insist they were merely discussing an upcoming film project they're working on together and are not dating.
In September, Michelle split from Heath Ledger, the father of her two-year-old daughter Matilda.
Heath and Michelle began dating after meeting on the set of Brokeback Mountain in 2004.
The pair wore wedding bands during their relationship but refused to confirm if they were married.
Ryan was recently linked to Heroes star Hayden Panettiere, following his split from his The Notebook co-star Rachel McAdams.
News Copyright © Sawf News. May not be reproduced without explicit written permission