watched anime

i just had watched "kuroshitsuji" (blackbutler) anime. and when i started to watch it..
"why sebastian's (main character) face looks really perverted? why his act is like that? why.. why..? why?? and bla bla bla bla....", a lot of comment had got out from my mouth. but, the important one is.. why the story in the manga (comic) and anime (film) is totally DIFFERENT???
aaah... although it was like that, i love it! i enjoyed watched it..
haha
:)