A little bit of romance in a movie really never hurt anyone. When it's done right, that is. When it misses the mark, well, let's just say it's a painful experience for everyone involved.
These movie on-screen kisses left a lot to be desired, be it from poor execution, or the fact that they felt way too out of place in their respective films. And in a lot of cases, it's more than just the audience that suffers.