Not miss (something) for the world phrase spoken
Would definitely go to an event, see something etc.
"Will you attend the school's prom this year?" "I wouldn't miss it for the world."
I am a big fan of this actor. I won't miss his upcoming film for the world.
I can't miss any of his performances for the world.
The origin of this phrase is not clear.
To talk the main part at once, or avoid talking about what is not important
You should get straight to the point.