Mischa Barton is not enjoying “The Beautiful Life,” despite its being the title of her new show. She’s said that she’s been ordered to stay away from booze, boys and bad behavior following her brief hospitalization this summer. She complained to cast members, “All I can do is smoke cigarettes.” Mischa was set to party responsibly over the weekend with her co-stars, including Corbin Bleu and Sara Paxton, executive producer Ashton Kutcher, Demi Moore and Harper’s Bazaar editrix Glenda Bailey.