See Lindsay Lohan as Elizabeth Taylor in Cleopatra

The 26-year-old-star was hard at work on the set of her Lifetime biopic, Liz & Dick, on Monday. Lohan transformed herself into Elizabeth Taylor's iconic role as Cleopatra, from the 1963 epic film about the Queen

of Egypt and her romance with Marc Antony. (Taylor met the love her life, Richard Burton, whom she married and divorced twice, on the set of the film; both were married to other people at the time.)

The actress styled a black cropped wig, gold snake headpiece, heavy eye makeup and flowy dress -- which she had to hold up to walk. Between scenes, Lohan puffed on a cigarette while in costume.

Lohan turned 26 on Monday and celebrated the day with a big birthday bash at West Hollywood nightclub Bootsy Bellows early Sunday.

"She sat at her table close to the DJ," a witness told Us Weekly. "[Up-and-coming group] Speakerz was there and performed several songs for Lindsey. She was loving them and looked happy and carefree as she danced all around with her friends." 

And the actress has even more to celebrate. She tweeted early Tuesday, "Thank you all for the birthday wishes! Also -- that's a wrap on Liz & Dick- thank you to all my fans, crew members, friends & lifetime!"

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