Mark Johnson has said that his a Ghost Rider fan, but I have my doubts about that - he seems to know nothing about the character or its history (if you read the comics you probably already know this, but as a casual viewer you probably don´t care).
Nicolas Cage gives his usual wooden and uninspired performance (he just doesn´t enjoy acting anymore and it shows) as Johnny Blaze, the best stunt rider alive and the bounty hunter for the devil himself. Worst of all is Eva Mendes as Johnny´s ex-sweetheart, a mere setdecoration, with no acting abilities whatsoever. When the old flame bursts into fire between them, I saw no affection, just awkwardly bad acting but the film is supposed to rely on CGI (like all movies these days) which isn´t that amazing but not quite poor either, although the Ghost Rider character is ruined by it (he looks ridiculous, he sounds ridiculous and he acts ridiculously).
So what about the humor factor? Yes, there were alot of jokes and humorous bits, none of them funny and not even remotely well delivered. But atleast there was no toilethumor.
Peter Fonda is excellent as the devil and that´s about the only really positive thing to say.
Campy soundtrack, poor screenplay, campy performances, bad directing - despite all that the movie is still entertaining enough to sit through it (maybe even more than twice), and atleast it manages to get up there in the gategory of so-bad-its-good.
Enjoy the ride if you will, but don´t feel bad if you want to hop off.
There is no extramaterial.