More Than Blue (2009)

Both kdramas deal about childhood friends that love each other. Both deal with a life-changing condition. However "More than Blue" has a much more tragic take on this and is a movie, whereas "I need Romance 2" is dealing with this topic in a more fun and lighter way

both are tearjerker movies!
they are similar in the fact that both main character are trying to hide the harsh truth about their incurable diseases and that they are trying to leave good memories behind for their loved ones...