Paul Rudd video calls lonely schoolboy who struggled to find any friends to sign his high school yearbook

Paul Rudd has melted hearts around the world after he made a new friend in a 12-year-old boy from Colorado.

The Ant-Man actor reached out to Brody Ridder, after hearing that the lonely tween had been bullied in school and that kids had refused to sign his yearbook.

Rudd found out about Ridder's plight after the youngster's mum Cassandra Cooper shared a picture on Facebook showing only two teachers had left messages for him, which soon went viral.

The 53-year-old helped Riddler feel special by contacting him via video call for a chat and telling him: "I heard about you and I was like, I've gotta talk to this kid, cause he seems like my kind of guy."

Several days later, Rudd sent his new friend a heartwarming note and a signed Ant-Man helmet.

The letter read: "Dear Brody, it was great talking to you the other day. It's important to remember that even when life is tough, things get better. There are so many people who love you and think you're the coolest kid there is - me being one of them!

"I can't wait to see all the amazing things you're going to accomplish. Your pal, Paul."

Riddler's story has since touched thousands of others around the world.

Go Brody!