In an interview with Vogue for her new movie Causeway.

The Oscar winner talked extensively about mothers – having one and now becoming one.

The Toronto premiere of Lawrence's first production, Excellent Cadaver, would take place the following week.

She admitted to the magazine that she has "had a pretty consistent theme in all my movies since I was 18,"

But she withheld further details because the subject was "extremely personal."

Lawrence, who has never been excellent at self-censorship, elaborated later.

She told Vogue that motherhood is frequently the subject of art.

"I hesitate to say that because I don't want someone to watch one of my older films, or this particular film.