Warning: This post contains a video that describes some occasions of sexual assault.

Meryl Streep, Amy Schumer and Rose McGowan are among the famous faces that appear alongside women who have experienced sexual assault in a powerful new video condemning Donald Trump.

The clip, entitled "It's Not OK" and produced by pro-Clinton group Humanity for Hillary, mixes footage from the leaked 2005 audio tape in which Trump talks about touching and kissing women with first person accounts of sexual assault.

The video also features clips of Trump dismissing his comments as "locker room talk" and claiming all the subsequent claims of assault against him are false, contrasted with some stark reminiscences from women about times they've been sexually assaulted.

Whoopi Goldberg, Maggie Gyllenhaal and Lena Dunham also feature in the clip, lining up to tell Trump that "it's not OK."

Actress Amber Tamblyn, who publicly revealed her own experience of assault earlier this month, appears too. "I think people like Donald Trump will never understand the correlation that women understand between words and actions," she says. “Especially when you’re a man in a position of power and you talk that way publicly ... you are telling the world that it’s OK to behave that way.”

Melania Trump appeared on CNN Monday to defend her husband, telling Anderson Cooper that Trump was "egged on" into "boy talk" during the 2005 incident and dismissing the multiple claims of assault against him as "lies."