Nothing will get in the way of Lindsay Lohan's partying - not rehab or a funeral.

The actress, who recently left the Wonderland treatment facility in Los Angeles after spending a month under care, did not attend a memorial service for Robert Altman in New York.

The actress was devastated following the director's death in November. After hearing of his death, the star of Altman's final film "A Prairie Home Companion," released a long statement praising him. Lohan said Altman "was the closest thing to my father and grandfather that I really do believe I've had in several years."

However, rather than join other stars such as Julianne Moore and Lily Tomlin at the service, Lohan hit the L.A. clubs with "Jackass" star Steve-O.

Since leaving Wonderland, Lohan, whose own father is currently in jail, has been out partying just as frequently as she did prior to rehab.

After hearing that the "Bobby" star chose her social life over remembering Altman, one source quipped to the New York Post newspaper, "If he was so important to her, where was she?"

Lohan was pictured leaving the Roosevelt Hotel.

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