Amy Schumer and Lena Dunham have slammed the prevalent sexism in Tinseltown – with the former going as far as saying: "I think people hate women".

"I don't think they want to hear a woman talk for too long," she added. "A lot of people project their mom yelling at them. My [career] has been about tricking people into listening. I'm not saying all men hate women, but there's such an aggression."

The stand-up comedian was supported by Girls' creator, writer, director and star Lena Dunham, who pointed to the treatment inflicted on women by internet sites such as Twitter and Instagram.

"The way women are spoken to in social media is truly shocking," she said. "It's how you imagine people screaming at prisoners in Guantanamo."

Dunham also spoke about experiencing overt sexism from within her own industry, offering the example of overhearing a man working on Girls make a rude comment about his working environment.

"I heard a guy on my show say into his microphone: 'I hate this job. I can't wait to be back on a show where there's a man at the helm'".

She added that the same man commented on her lunch, saying, "You're really enjoying that buffet, aren't you?"

Dunham considers the unnamed individual "the worst person alive".