Brad Pitt & Lena Dunham Film 'Once Upon a Time in Hollywood' in LA!

Brad Pitt and Lena Dunham are hard at work!

The two stars were seen filming scenes for their upcoming movie Once Upon A Time In Hollywood on Wednesday (September 26) in Los Angeles.

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Co-star Margaret Qualley was seen taking a break with Brad, enjoying their time behind a bus during the busy shoot day.

Director Quentin Tarantino and Lena were spotted chatting in between scenes.

The film follows a faded TV actor and his stunt double who embark on an odyssey to make a name for themselves in the film industry during the Helter Skelter reign of terror in 1969 Los Angeles.