Overview

• Joey King struggled to keep up with Nicole Kidman's intense butt workout on set.
• King continues to use the workout routine, often jokingly texting Kidman for support.
• She revealed a childhood obsession with Zac Efron, whom she admired from his 'High School Musical' days.
• Efron and King bonded over fitness and wellness tips during filming.
• King describes both Kidman and Efron as incredibly fit and supportive co-stars.