Michael Douglas and Catherine Zeta-Jones
04/15/2011 at 06:00 AM EDT
and Michael Douglas have been through a difficult year, but they are clearly taking joy in life's simple pleasures – like pizza.
On Thursday, only days after it was revealed
that Zeta-Jones, 41, had sought treatment for bipolar II disorder
, the couple stopped in at Pizza Post in Greenwich, Conn.
"They seemed great," said an observer of the pair, who also dealt with Douglas's battle with cancer
last year. "They looked very happy together."
The other patrons were "thrilled" to see the famous couple, who were gracious and low-key as they waited for their food, according to the observer.
Zeta-Jones is already scheduled to get back to work: She has two new movies coming up, including Playing the Field
, currently in production in Louisiana with Gerard Butler
and Jessica Biel
, and Lay the Favorite.
Reporting by KC BAKER