After collapsing on the set of her latest movie from 'exhaustion' and being released from the hospital, the 20-year-old went clubbing the very same night, reports from various sources say. After all, she may be sick, but a girl needs to have some fun in her life...

The big bosses from Morgan Creek Picture, the company currently producing 'Georgia Rule', starring Lohan, Jane Fonda and Felicity Huffman, probably hearing all the rumors around Hollywood, decided to take more drastic measures to ensure the success of the film and sanctioned the crazy party girl.

The CEO of the movie company, James G. Robinson, sent a letter to her house, in which he explained to her that, if she continues to act so unprofessionally, they are very likely to take legal action against her. Basically, the hard working Lindsay always came late on the set, or failed to do so for entire days.

Robinson isn't fooled by the 'exhaustion' excuse, either: 'We are well aware that your ongoing all night heavy partying is the real reason for your so called "exhaustion". We refuse to accept bogus excuses for your behavior', he tells Lohan. Even more, her attitude has 'alienated many of [her] co-workers and endangered the quality of this picture [and her] actions have resulted in hundreds of thousands of dollars in damage'.

Also, the CEO calls Lohan 'discourteous, irresponsible and unprofessional' and 'a spoiled child' and brings to her knowledge that she will be sued if she continues to endanger the integrity of the movie and of the other persons involved in the project.