sam ( thomas cavanagh ) and gray ( heather graham ) be devote sibling who share an apartment and a love of many thing ballroom dancing and 1940s movie musical and and much to their surprise and an attractive woman name charlie ( bridget moynahan ) . historically heterosexual and gray be confuse by her new feeling . gray matter prove to be one of the bland film i have ever see . it dull and predictable and unfunny and poorly act and poorly write . nothing about it felt real and everything be very cheesy . also and this isn not really a romantic comedy with a special twist but more of a come out movie . sue kramer try to make the first half cute with the romantic stuff and the second half serious with the actual acceptance and come out part . unfortunately and she fail miserably . the first half be largely unfunny and only heather graham be able to hold it up a little . then and the film take an awkward tone and get all serious . the serious scene be handle poorly and all of the emotion just felt phony . i guess i would have enjoy the film a little more if the relationship between the character felt more authentic . the brother and sister relationship be very weak and they do not really appear to be that close . their relationship just do not feel very natural . also and the relationship between tom and bridget felt very unnatural . if two people be go to get marry after only know each other for less than a week and then you would expect to see a little more excitement but the character talk about get marry in vega in the same manner of ask a waiter what the special be . there be a lack of excitement in the film and it be hard to get involve with the movie with such unmotivated character . the acting be mostly weak which be a bit surprising give the decent cast . heather graham give the only good performance in the movie . she be funny and have a few charming scene but it too bad that all of her co star be complete dud . bridget moynahan be very weak and her performance ring false on every level . also and it seem like she be read her line . thomas cavanagh be pretty wooden and he show nearly no emotion . the chemistry between thomas and heather be non existent and that damage the film because their relationship felt phony . i can usually rely on molly shannon to be funny in a supporting role but here she be just annoy . sissy spacek have about two scene and she be annoy in both of them . finally and alan cumming just have an embarrassing character and his performance wasn not very good . overall and gray matter be a lame film and it isn not worth watch . rating negative .