Quite boring...
...If it wasn't for the SOAD music (if i'm not mistaken) I would have probably dozed off 15 seconds into the movie. The Graphics weren't bad, nice to see the 3d effect of the greetings card, but otherwise, it was like some personal torture for me.
Needless to say, In my opinion the song doesn't really fit the theme, although the graphics just about made up for it. Not much to say on humour though...