Lindsay Lohan still partying

When Lindsay Lohan entered a rehab program earlier this year, many hoped it would be the end of her late night partying and late appearances on film sets. But the actress has shown no signs of changing her ways and has been photographed clubbing as usual.

Lindsay's love of the nightlife is still causing problems for her on the job, claim sources on the set of her upcoming film, I Know Who Killed Me. In Touch Weekly reports that she showed up several hours late for shooting on February 21. The mag's snitch said, "When she finally arrived, she said that she needed to take a nap." Lindsay's onset nap took another five hours after which she went home. Let's just say her cast and crew were not too pleased about the incident.

Lindsay's sometimes rival, Scarlett Johansson took a moment out of her recent interview with Parade magazine to subtly comment on Lindsay's work ethic. She said, "I'm very responsible when I'm working. I've just been doing it for a long time, and I'm not the kind of person who is going to show up to work three hours late, or maybe not come at all. That's just not who I am. That just has to do with the fact that I understand that everybody else comes to work, and we would all like to get an extra four hours of sleep, but what can you do?"