Kate Beckinsale adjusted her bikini bottoms on vacation in Mexico with husband Len Wiseman yesterday. Kate and Len spent their Summer and early Fall together in Toronto working on the remake of Total Recall, which she is starring in and he's directing. Now that they've finished up work on that highly anticipated project, it may be time to shift focus to one of their favorite holidays. Kate, Len, and her daughter, Lily Sheen, go all out for Halloween, and some of their couple and family costumes have included Frankenstein and his bride, Superman and Wonder Woman, and a devilish trio. We're excited to find out what they pick out this year, and, in 2012, we'll be seeing Kate in a number of sexy getups. She'll be back in her skin-tight Selene outfit for Underworld Awakening and kicking ass in Total Recall, and we'll see a slightly different side to her when she joins up with Mark Wahlberg in Contraband.

Marion Cotillard took off her t-shirt on the set of Rust and Bone in France today. She went topless to film a scene in the water with her costar Matthias Schoenaerts after the duo prepped on the beach. Marion arrived in the South of France last week and she brought her son, Marcel, along to the location. The 4-month-old stayed behind for a recent day of prep in Antibes, though, where Marion practiced her killer-whale training skills at Marineland. Her son has been traveling with her since his birth in May, and they've stopped in LA and NYC as well as in Marion's hometown of Paris.

Amid a barrage of headlines about the shaky state of their marriage, Ashton Kutcher and Demi Moore went camping together near Santa Barbara last weekend and we have more new photos of their getaway. The couple, who recently passed their sixth wedding anniversary, were reportedly joined by Kabbalah instructor Yehuda Berg and Kutcher's friend Eric Buterbaugh. Ashton and Demi have yet to release any official statements about the infidelity allegations plaguing their relationship in recent weeks, though he did reemerge on Twitter over the past 24 hours. Ashton tweeted well wishes to Demi about the premiere of her Lifetime short film as part of the Five series and later wrote, "Everybody else is living in the world you create... Yes you!" The camping trip was the first time Ashton and Demi were spotted together since the affair rumors surfaced a few weeks ago, but the woman at the center of the scandal isn't letting it go quietly. Sarah Leal gave an interview to Us Weekly about the night she allegedly spent with Ashton. For now, however, Demi and Ashton are putting up a united front and not engaging by directly acknowledging the stories.

Emma Stone wore striped Luca Luca to join fellow Hollywood starlets like Jessica Alba, Amber Heard, Rashida Jones, and Katie Holmes for Giorgio Armani and Vanity Fair's private dinner in LA last night. Super stylist Rachel Zoe was decked out in black to pose before the exclusive meal. It was Katie's latest outing with the brand after attending many of its shows over the years. Katie Holmes's wedding dress was even Armani! There were plenty of men represented, too: Adam Brody dressed up for the event as did Josh Hartnett, Aaron Eckhart, newly single James Marsden, and Darren Criss. It was a date night for Mark Wahlberg and Rhea Durham as well as J. Edgar star Armie Hammer and his wife Elizabeth Chambers. Emma attended after a long day on the set of The Gangster Squard with her two-time costar Ryan Gosling — the duo also acted together in Crazy Stupid Love. Katie Holmes, meanwhile, has been hanging out on the West Coast and shopping with her daughter, Suri Cruise, following their weekend visit to Tom Cruise on the Pittsburgh production site of One Shot. The debut of Katie's next acting gig is coming up, too, when the Halloween episode of How I Met You Mother, in which she plays the infamous "slutty pumpkin," finally airs.