Director Mira Nair has revealed that before she started shooting for her movie Vanity Fair, she asked actress Reese Witherspoon, who plays the lead role in the movie, to get pregnant so that she would get a fuller figure.

The critically acclaimed director said that she had gone for diner to Witherspoon's house before the movie started filming and she asked Witherspoon's actor husband, Ryan Philippe, to 'knock her up,' reports Female First.

"I am not a fan of underfed Los Angeles actresses so the year before we began filming, I had dinner at her home and told her husband to knock her up... and he did," the report quoted Nair as saying.

"It had a wonderful effect on her luminosity and womanliness. In those days the dresses had plunging necklines. It was the bosom that I wanted and I certainly got that," she added.