M7 is exactly right, film how you want to there hundreds of tutorials out there for "realistic" filming but truth is not every skater skates same and not every filmer films the same. At the end of the day it's just a game and people tend to forget and claim because they don't film and skate like them. Just have fun with it and do what you want.
If you want good "realistic" filming check out some good tutorials I recommend dogtown or i think seanne had one. If you skate and film in rl, it's same concept