Sienna Miller Sienna Miller We've often wondered if there was a magic glue that could get celeb couples back together.

And we think Sienna Miller and Jude Law have answered our prayers.

Because there are whispers of them doing it together again.

Doing what?

Erm, not the dance of love, people, but rather acting together again.

According to Digital Spy, they'll be teaming up on the big screen to star in Guy Ritchie's new project, Sherlock Holmes.Jude LawJude Law

The last time they starred together was in Alfie, four years ago.

Apparently Jude will be playing Sherlock's trusty sidekick, Watson, opposite Robert Downey Jr in the lead role.

The movie is set to be released in 2010.

Now of course since there's been no word from Si or Jude confirming this, we've got our hearing trumpets all shined up and ready to sniff out any snippets they send our way.