"My sister told us about it and we thought it would be a fun school holiday activity, we didn't expect to get anything from it."
Mr McFadyen said Matthew "takes everything in his stride" and did a great job of pulling the video together.
"We were talking about how the All Blacks could win the Rugby World Cup and he turned to me and said 'you should play for them dad' and that's how we came up with the video idea."
He said Matthew was mainly excited to fly to Christchurch and go somewhere new.
"[Matthew] is pretty wrapped up in it all but I think I'm more keen to meet the All Blacks than he is," he laughed.
Matthew said he was excited when he found out he had won.
"It was cool making the video, especially the part where I got to pat the rabbit. When we won, I was excited because I get to go to Christchurch with dad."
He said he already had two questions he planned to ask the All Blacks.
"I want to know if they are allowed to take their kids to the game and also if they play sports other than rugby."
Matthew and his dad will fly to Christchurch tomorrow morning for the press conference.