Despite Lena Dunham's great success with her HBO series Girls, the 27-year-old has revealed that she had been fired from her last HBO project, Mildred Pierce.

"I got fired off the one day I did. Fired might be a rough word but I got sweetly dismissed," Dunham said.

The Girls creator admitted that she didn't properly prepare for her role as a nurse in the period drama, which stars Kate Winslet: "I didn't practice. I looked over the script with my mom and since the project takes place in the '30s I was like, 'Am I supposed to do any kind of accent?' My mom was like, 'They are hiring you to be you. Just go for it.' "

Unfortunately for Lena, her mom's advice didn't work out: "You could just see everybody's face drop... It was like Ricky Gervais in Extras. They were like, 'This is a f***ing disaster.'"

Dunham went on to helm her own series on the network, but she didn't completely get over the event, as she ran into the same dialect coach from Mildred Pierce and "had like a full P.T.S.D. reaction." She added, "I couldn't take it because she was the bearer of such negative memories for me."

Hopefully she won't be needing that dialect too much on Girls in the future!