CODEBREAKERS The N_ of the G_!

This box of bafflement contains a series of cunning ciphers... but what do they mean?
It's up to you to crack the codes and reveal the mystery phrases, songs, film titles and so much more.
Challenging? Possibly... but help is at hand because each card has a teasing topic that points you in the right direction. Can you determine what the mystery letters stand for?
Suits Ages 14+ 3+ Players