Jude Law and Sienna Miller Jude Law and Sienna Miller They were THE It couple back in the day.

Could it really be true that Sienna Miller and Jude Law are back on again?

Word on the hotwire has it that the former lovebirds, who are both starring on Broadway at the moment, have been spotted enjoying a string of "cosy" dinner dates in New York.

Last night, Jude and Sienna hit trendy club Box where, according to onlookers, they partied into the early hours.

"They came in together and got a table with a few friends," one eyewitness told the Metro. "At one point Jude ordered shots for the two of them and he was egging her (Sienna) on to take one.

"They were laughing a lot and whispering to each other. They certainly looked like more than just friends."

Both Jude, appearing in Hamlet, and Sienna, starring in After Miss Julie, are single right now.

Their two-year relationship hit the rocks in November 2006, four months after Jude expressed his "sincere regret" for cheating on Sienna with his children's nanny Daisy Wright.

Both parties said the split was amicable and have since insisted that they remain "good friends".

Sienna has gone on to enjoy several high-profile relationships with partners including Rhys Ifans and Balthazar Getty, while Jude has fathered a baby following a brief fling with American model Samantha Burke.

However, could this latest bout of Sienna and Jude's New York partying bring with it the flame of reignited love between the pair? Only time will tell.

Sky Showbiz have contacted Sienna's rep on this story and are awaiting comment.

Take a look back at JUDE AND SIENNA'S RELATIONSHIP OVER TIME.