India, May 14 -- Demi Moore turned heads on the Cannes red carpet, and not just for her shimmering Jacquemus gown. The 63-year-old jury member's slim, muscular arms and noticeably thin frame sparked a wave of reactions online, ranging from praise for her glamour to discussion about her appearance.

Moore arrived at the festival opening ceremony in a strapless silver sequined gown paired with Chopard jewels. The Golden Globe winner and her stylist, Brad Goreski, also shared a video of the look in a joint Instagram post.

"Maybe one of my most favorite dresses on you," actress Rita Wilson commented on the post.

While many fans applauded the fashion choice, others focused on Moore's noticeably toned arms in photos and clips circulating onli...