OBVIOUSLY IT WAS AROUND BEFORE THAT MOVIE!!!@!!@!@!@!!
That's the point. Some people use less common words on a regular basis, but because that movie came out more people began saying "I concur" & "Do you concur?" than ever before. Why did this happen? BECAUSE CHILDREN ARE HIGHLY IMPRESSIONABLE & ARE LIKE APES WHO MIMIC TO MAKE UP FOR THEIR LACK OF EXPERIENCE.