- Navigate to
My Documents/My Games/Sid Meier's Civilization V/
on a PC or~/Documents/Aspyr/Sid Meier's Civilization 5
on a Mac. - Look for the file "Usersettings.ini" and open it in a text editor like Notepad
- Search for the variable "SkipIntroVideo = 0"
- Change the 0 to 1
Enjoy your shiny, intro vid free Civ!