'Django Unchained' Actress Claims LAPD Brutality Because of White BF

An actress from "Django Unchained" claims she was the victim of classic racism and police brutality ... just because she was showing affection to a white man.

Daniele Watts and her boyfriend Brian were making out in a parked car Thursday outside the CBS studios in the San Fernando Valley. Daniele had just left a meeting at CBS with a director. Brian tells us ... he was told a resident of a nearby apartment saw them making out and called the cops.

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Brian tells us LAPD officers came up to them with a suspicious eye.  Brian believes it's because cops saw "a tatted rocker white boy and a hot bootie shorted black girl and thought we were HO & a trick."

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Brian -- a celebrity chef -- says cops demanded to see their IDs -- he complied but she refused.  Brian tells TMZ ... Daniele walked away, only to be confronted by cops a short distance later, cuffed, thrown in the back of the patrol car and taken back to the scene.

She says the cuffs were so tight they tore through her wrists, causing them to bleed.

Cops say they received a 911 call from a concerned citizen saying a male and female were involved in "indecent exposure" inside their vehicle ... with the door open.

Brian says they've retained a lawyer and will file a complaint with the LAPD ... and more.

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