The Titanic actress stars alongside the heartthrob in upcoming drama The Dressmaker, and one scene featured the Australian actor peeling off his shirt.

Kate has now confessed the scene took 12 hours to shoot and drew a lot of attention from the female crew members as several re-takes were ordered, meaning Liam had to repeatedly disrobe.

The actress tells U.K. talk show host Graham Norton, "We struggled to keep a straight face during that scene. Poor Liam, for 12 hours straight we kept making him take his clothes off. We didn't mean to!"

The Oscar winner also reveals how getting up close to the semi-naked hunk made her 15-year-old daughter Mia green with envy, adding, "My teenage daughter was furious that I got to be the same space as him and at that moment. She just made a series of sounds!"