The Grading Scale

It seems pertinent to provide a scale from which films are graded, for future reference.

A+ : Easily in the top 100 films I have ever seen.
A : Well done! Perfect in nearly every way.
A- : Very nice, but not perfect.
B+ : Very good.
B: Good
B- : Getting good.
C+ : Slightly better than standard
C: Standard
C-: Substandard
D: Very Substandard
F: Booooo. Couldn't be any worse.