Are Jude and Sienna back together?

Are Jude Law and Sienna Miller back together?

The couple arrived separately to the premiere of Sienna's new romantic comedy “Casanova” in Hollywood on Sunday night and Sienna told Access Hollywood the couple is very much back together.

“It's going really well. We are working everything out so it's going good,” Sienna said. "It's lovely to have him here to support me.”

Jude hit the red carpet and posed for photographers before slipping into the theater alone. He did not give any interviews.

But after the movie, he was right by Sienna's side, as she looked stunning in a black Stella McCartney gown, albeit without her engagement ring.

But Sienna, sporting a new shorter hairdo, told Access that going through “Nannygate” with Jude so publicly was tough.

“It's an element of my life that I'm not that good at dealing with, to be honest. And if you go through something difficult, and it is that public, it makes it a million times worse,” she explained. “But we're really happy actually. So it's good.”

The couple's whirlwind weekend began Friday at a beachside photo shoot for Sienna. Access spotted the couple in deep conversation Saturday night at the Santa Monica dive bar Chez Jay, which is right near the oceanfront hotel where they were staying.

Sienna was seen romantically cupping Jude's face in her hands as the two left the bar.

As far as the “Casanova” premiere, the movie's headliner, Heath Ledger, was a no-show, though for good reason.

Ledger and Michelle Williams are new parents, with their first child, daughter Matilda Rose, who was born last month.

The film, which opens Christmas Day, is a re-imagining of the life of Casanova, the famous Venetian adventurer, writer and lover.

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