Sometimes a film is so bad...
...that it takes years for it to be truly appreciated as such. This is the case with "Grand Canyon," a film so self-indulgent, so full of itself, a celebration of the narcississtic, so full of pretentions yet vapidly emtpy, that it will take years for those duped into thinking they've seen something profound to come to terms with the reality of it.
If they ever do.
This would have to entail, unfortunately, growing up.