Kristin Scott Thomas - Robert Pattinson's 'Bel Ami' co-star says the key to a good sex scene is "courage and choreography". Kristin, 49, and one of the stars of the upcoming flick adaptation of Guy de Maupassant novel - had to shoot an erotic scene for French film 'Partir' - in which she plays a frustrated housewife who committed an affair with a former prisoner.

Photos: Fame Pictures

Kristin Scott Thomas revealed that she approaches sexual sequences in the same way as an action shot. The British actress said: "You need courage for it. But in the end professionalism is all that counts, no matter if it's a sex scene or a fight scene. It's all about choreography. The director and the cameras dictate what and how you have to act. Just like they instruct you how to make a blow look like it hurts during a fight scene."

Speaking of 'Bel Ami', Kristin and Robert Pattinson - will start shooting their film 'Bel Ami' in London and Budapest this week. So expect some photos of Kristin - hanging out with young Brit hunk Rob.

In related news, Robert Pattinson and Kristen Stewart - stars of the upcoming flick 'Eclipse' - are still hot for each other, according to E News' source. But the bad news is - Rob and Kristen want to make sure that they stay focused, especially with their big non-Twilight flicks coming up. The source of the site said: "They have been very close up until now,"