I've always been interested by the asian culture of treating blood types with such importance in regards to one's personality; so I decided to give this movie a go. As I hoped, I enjoyed how the stereotyping of the blood types was really shown through each of the characters, Young-Bin was certainly a stereotypical blood type B man with the way he handled things and his whole attitude. To me, it seems a bit silly to base love on blood type but if you throw that thought out the window and focus on the hillarity of how this movie shows us what each blood type usually acts like, you will enjoy this. I liked the acting, I thought Han Ji-Hye and Lee Dong-Gun were magnificent for their parts... the only issue was I couldn't see any chemistry between the two actors but maybe that's just me. I also thought the music was really nice too. It was sweet and subtle. This movie will have you laughing and smiling. There are moments when your heart warms and moments when you roll your eyes. Overall, it was a pretty good movie but I wouldn't say you are missing out on anything if you don't see it.