Watch: Demi Moore makes Instagram debut; first post is video post Princess Eugenie's weddingOct 14 (AZINS) Demi Moore forayed into social media through Instagram on Saturday.

The 55-year-old actor shared the first video to her account a few hours after making a surprise appearance at Princess Eugenie and Jack Brooksbank's wedding.

Moore thanked her team and designer Stella McCartney for making her feel like royalty.

"Stella, this is for you. I'm just back from the wedding... I just have to say thank you so much. I felt so beautiful, so comfortable. I felt like a princess today. Thank you, thank you to your whole team. You guys were amazing," the

"Margin Call" actor can be heard saying in the video.

She dedicated the post to her three daughters - Rumer, 30, Scout, 27, and Tallulah, 24, who she said "have been desperate for me to get into the InstaSwing".

The actor attended the wedding with florist Eric Buterbaugh.

Since making her Instagram debut, Moore has accumulated more than 60,000 followers.