No wonder Cameron Diaz looked so smug and disheveled as she left a London club on Sunday night. The actress has been busy keeping two Hollywood actors on their toes (apparently), as Jude Law and Leonardo DiCaprio are both dating and vying for Diaz's affections, who has about as much luck with men as Jodie Marsh...

Law and Diaz, who both stared in The Holiday not so long ago so probably slept with each other then, went to Boujis on Sunday night but pretended to leave separately to avoid being photographed together.

Meanwhile Leonardo DiCaprio has been taking Diaz out and about and showing her a good time, with a convenient source saying:

Cameron has been showing a lot of interest while he is in London filming. She was back at his rented apartment in Knightsbridge, west London, a couple of times last week after a series of secret dates. They were joking with friends that they played chess together.

Is that what they're calling it these days?

Jude and Cameron have been good friends since they filmed The Holiday together a few years ago. Now they are both single, things are a bit different between them. Jude has been flirting with her and she has been playing along.

We'd rather hack off our right arm with our keyboard than ever "play chess" with Jude Law...