The hip-hop mogul wants to relink his romance with the actress
P. Diddy - who was linked to the stunning actress last year following his split from Kim Porter - is currently penning a romantic comedy and is keen for Sienna to play the lead role.
He said: "I'm writing a film, a comedy. For actresses, I want Angelina Jolie and Sienna Miller."
When asked who would play the male characters, P. Diddy replied: "For actors, Eddie Murphy."
His pal Crazy Dogg added: "This is going to be one hot movie. We're all like, are you writing this so you can just hang with Sienna?' "
Sienna and P. Diddy were first romantically linked last January, shortly after the rap star's then-partner Kim had given birth to twin girls.
The pair were seen partying in New York, before heading back to the actress' hotel room.
He was quick to quash speculation the pair were anything more than friends.
However, they then sparked fresh romance rumours last July, after the blonde actress went to the rapper's post-Concert for Diana party, held at London's Paper nightclub.
The pair spent most of the evening together and later moved to a private area of the club to relax behind a curtain.
The following month, P. Diddy invited Sienna for a romantic break on his yacht in Ibiza.