Yeah I thought that was weird too about Sirius! He somehow morphed into a different kind of dog in the time between those two movies! My guess is they didn't want to have to use CGI to create the dog like they did in the 3rd movie, so they decided to just find some big black dog for the 5th movie instead.
Everybody Wants to Rule the World  is a song by the English band Tears for Fears. Originally released in the UK on 22 March 1985 it was the band's ninth single release in the United Kingdom (the third from their second LP: Songs from the Big Chair) and seventh UK Top 30 chart hit, peaking at number two in April 1985.
He was quoted there as saying, I don't see anything on television right now that is speaking to the audience I have always spoken to and care very much about.. Girl Meets World premiered on June 27, 2014 and was picked up for its second season on August 6, 2014 as the number one television show for kids.