Angelina Jolie is all smiles as she drops son Maddox off at university

Angelina Jolie is proud mum!

The 44-year-old actress was photographed beaming as she dropped off her eldest son, 17-year-old Maddox Jolie-Pitt, at Yonsei University in Seoul, South Korea, where he is said to begin studies in biochemistry.

A fellow student by the name of Richard Choi documented the Oscar winner's arrival on his Instagram. He shared a snap of himself talking with a smiling Jolie, who dressed casually in a black camisole and matching pants. She accessorised her look with a small peach handbag and a gray jumper tied around her waist and her signature long, brown hair cascaded down her shoulders.

"Thank you miss Jolie for having a 40 seconds conversation with me!" Choi captioned the photo. On his Instagram Story, he shared a snap of Jolie and Maddox touring the campus.

In a video captured by Instagram user @Jowonnn, Jolie chats with students and said that Yonsei University "seemed like a great school."

A source told People recently that Jolie is "very proud" of her son's choice to attend Yonsei University. "She will miss seeing him as much, but he's ready," the insider added.

According to the magazine, Maddox will be missing his brothers and sisters, Pax, 15, Zahara, 14, Shiloh, 13, and 11-year-old twins Knox and Vivienne, whom she shares with ex Brad Pitt.

"He's very close to his siblings and they all hope to visit," the insider said.

Last November, Joie and Maddox were seen visiting several campuses in Seoul, where she was on official business as the United Nations High Commissioner for Refugee (UNHCR) Special Envoy.