it be important not to be insult by lack of logic or common sense and those who have any gray matter will agree that this movie just doesn not work . the problem lay in the direction and cast selection and lack of depth in the character building . the word comedy be very hard thing to say when i expect to laugh when these word be use . let look at the problem in direction or script . brother and sister both in their mid 30 seem to be well adjust . they meet a complete stranger at a park and heather graham character walk up to her and ask the most intimate question that even half sane person would be run the other way or at least scream for a police officer . he then awkwardly walk over and make some stupid statement and she fall for him . then after one date be they all go out together he fall in love with her and decide to get marry in vega in a week time . hello do anyone feel stupid yet . he go out with thousand of woman and he meet this one person who say about 10 word that we see on the screen and he want to marry her . not only be there no chemistry it just doesn not make sense . sure it a romantic comedy and i want to believe it could and but the direction make it completely flat . now heather fall head over heel with her too and when heather graham and bridget moynahan ( very shallow character ) kiss or more to the point it be sloppy kiss ever that chemistry might be there . i find it unromantic and unfunny and while many say heather can not act i think the reality be heather be clearly the wrong person for this role . this be sue kramer debut a a director and to me it be just too much for her to chew . it would take a lot of craft to make this movie work and imho it could be do with good writer and casting and direction .