Sienna & Rhys Do Tha Mile High - As James McEvoy Looks On!

UK's The Mirror Reports: After three days of hard-partying at the Oscars, all we wanted on our flight home was to sleep. But that was out of the question after we got hooked on the extraordinary scenes played out between Sienna Miller and her lover Rhys Ifans just a few seats away from us. We watched with mounting - ahem! - astonishment as the couple cavorted shamelessly on the 12-hour flight from Los Angeles to London. The pair's antics reached an eyepopping climax - at 37,000ft - with Rhys whipping off his top and jumping half-naked into giggling Sienna's fold-out SINGLE bed.

Their award-winning transatlantic performance (in the horror category) started from the moment we'd buckled into our Upper Class seats for the 7.30pm Virgin flight on Monday. Oblivious to all fellow passengers - including Oscar-less James McAvoy, who was buried in his sudoku book - Sienna and Rhys began snogging, tongues a go-go. Imagine a soundtrack of slurping and squelching. Next came an interlude of hairstroking, petting and nibbling, interspersed with whispering to each other and laughing hysterically. After slipping into baggy black sleep suits they then treated us to some play-fighting. After a while, Sienna demanded: "Baby, baby, can you go to the bar and get me some white wine." Rhys nodded, collected two generous glasses of Pinot Grigio, and managed to spill one down himself. Classy. And just as we thought things couldn't get any more stomach-churning, came a sight we wouldn't wish on our worst enemies. Rhys pulled off his wine-soaked top, exposing his scrawny white body, and squeezed into Sienna's bed for a snuggle. As it's only 33ins wide, that's some squeeze. Undeterred, there followed even more giggling and kissing under the duvet before Sienna told him: "Let's see a film." But their choice of movie, Michael Clayton, failed to hold their attention. They were like a pair of teenagers on the backrow of the flicks as they kissed throughout. Pass the sick bag! Their passion was only halted when the stewardess brought over their dinner - a tomato and mozzarella soup, beef stroganoff and roast chicken.

Eventually, Rhys padded back to his own bed and had a kip. Meanwhile, A-list proceedings elsewhere on the plane were far more sedate. Atonement star James McAvoy continued with his puzzles, holding hands with wife Anne-Marie Duff. The most animated he got was to give a snoring passenger a glare. Back at the other end, Rhys flew into a panic on waking to find that a stewardess had confused one of his film scripts for rubbish. Returning it to him, one of the crew joked: "We should have put it on eBay." To which a bleary-eyed Rhys snapped: "I don't think so."