Plot

Hannah surprises Tom, her best friend who is secretly in love with her, with the news of her engagement to a wealthy man. Things take a complicated turn when she asks Tom to be her maid of honor.

Made of Honor revolves around Tom and Hannah, who have been platonic friends for 10 years. He's a serial dater, while she wants marriage but hasn't found Mr. Right. Just as Tom is starting to think that he is relationship material after all, Hannah gets engaged. When she asks Tom to be her "maid" of honor, he reluctantly agrees just so he can attempt to stop the wedding and woo her.—Orange

Tom is a Casanova, who met Hannah in a party. They remained friends for 10 years and maintained their relationship strictly to friendship. However Tom's feelings for Hannah begins to change when he realises that she is getting married. He realises that he loves her.—Keith Francis

Slick stud Tom, a born womanizer, always had a boon for confident Hannah, the one who never fell for his cheeky charms but became his female confident, yen years after their college dorm days. He always waved his New York basketball mates' warning she wouldn't remain available endlessly for a serial dater. For her job as art prospector, she was on a six weeks mission to Scotland, during which Tom realizes he misses her around badly. To his horror, she returns with a Scottish perfect fiance, Colin, who already convinced her to move into his ancestral estate. While hesitating to make a last-chance move, baffled Tom accepts her invitation to act, lacking a girl buddy, as his 'best maid', inspired by his committed mates to attempt sabotaging Colin and convincing her he's the only soulmate. So he comes along to Scotland, where he's heir to the country's largest whiskey distillery, and a champion at everything, from hunting to Highland games, yet Yankee novice Tom must compete.—KGF Vissers

Against the odds, New Yorkers Tom and Hannah, who have known each other since they were in college together ten years ago, became best friends, those odds being their differences: Tom, a Lothario, who fashions his dating life to avoid any sort of commitment, and Hannah, the one woman who called out his womanizing behavior - his admiration of her in doing so the basis of their friendship - and with who he has never pursued because of it. Independently wealthy Tom, who lives off the royalties from inventing the takeout coffee cup collar, is like his father, also a womanizer, who, conversely is commitment happy in being on wife number six, he choosing younger trophy wives even in knowing they are marrying him primarily for his money. When Hannah, an art historian, returns to New York after a six week business trip to Scotland, she brings with her new fiancé Colin, a wealthy scotch maker and royaled Scot (the son of a Duke) with who she fell in love at first sight, they planning on getting married in Scotland in two weeks time. The problem for Tom is not the fact that as her best friend Hannah asks him to be her maid of honor, but that while she was away he came to the realization that he wanted a life of commitment, specifically with her. With his best male friends advising him, Tom decides to accept the role of maid of honor both so that he can show up Colin, and show Hannah that he is changed man worthy of her committed love. His already difficult job of showing himself in a different light to Hannah is made all the more difficult as Hannah's cousin Melissa is one of the bridesmaids, she who has never forgiven Tom, a former lover, for their split.—Huggo

One Halloween night, Tom Bailey (Patrick Dempsey) dressed as Bill Clinton goes to slip into bed with his pre-arranged date "Monica", but it was the wrong woman. Instead it was "Monica's" roommate Hannah (Michelle Monaghan). After bantering which each other, they become instant friends for Tom likes her honesty and how she doesn't fling herself at him.

Ten years later we see Tom, very wealthy because of his creation of the "coffee collar" (gets a dime every time it is used) and leaving the bed of another girl. A different one every every night for one of his rules is "no back to backs except for Sundays and Mondays for they are a different week". After picking up two lattes at Starbucks and another phone number, Tom meets up with Hannah at a museum where she is a painter, and the two have lunch.

Tom takes Hannah to his father's sixth wedding to a young girl who has more boobs than brains and after the reception Hannah tells Tom she must go to Scotland for work. While she's gone for those long agonizing months, Tom discovers that without her, and being with other women over and over is not very fulfilling. He soon realizes that he is in love with Hannah. During a basketball game he tells his friends his realization and get typical neanderthal responses from them, but decides to tell her his feelings after all when she gets back. However, after meeting up with Hannah at a restaurant, Hannah surprises Tom by introducing to him a wealthy Scotsman named Colin (Kevin McKidd) and announces that they are engaged, and incredibly asks Tom to be her "maid" of honor.

After discussing it with his friend, Tom decides to be her maid of honor after all just to spend time with her. After meeting her pastor he tries to convince her she does not even know Colin and make her realize that she loves him but to no avail. Later they meet up with the other bridesmaids, one of them being Hannah's cousin and a bitter ex fling, who passes Tom a business card for entertainment for the shower. Later at the shower the business card was actually for a sex toy party.

After arriving in Scotland for the wedding, Tom realizes he is running out of time to stop Hannah. He meets all of Colin's family and must perform in the "games," in which the groom must compete to prove himself worthy of his bride. Tom is also in the competition with Colin but is humiliated in the last round. It seems as if Colin is near perfection. The following evening Tom takes Hannah out for a walk hoping to tell her how he feels, however the other bridesmaids interrupt for Hannah's bachelorette party (Hen Night). On her Hen Night, Hannah parades around a pub and sells her kisses for change. As she goes around, Hannah kisses Tom. Though it just started as a peck, it turned into a passionate kiss.

That night, Hannah decides to confront Tom and ask about the kiss. However, when she gets to his room her drunk cousin is there trying to seduce him. Hannah leaves and Tom runs after her. He knocks on her door, pleading for her to let him in. She refuses and asks about the kiss. He tells her he knew he was the one for her, not Colin. She refuses to say that she thinks so too and still expects to marry Colin the next day. Tom cannot go through with watching Hannah and Colin get married so he decides to go home. When questioned about his disappearance, Hannah simply tells Colin that Tom is just afraid of losing her. On the way home Tom realizes that he must stop the wedding and goes back on horseback. Just when the priest asks for objections, Tom is sent flying off his horse and through the chapel doors. Seeing her best friend on the floor, Hannah rushes to him. As he struggles to stand up, he tells her that he loves her more than anything. They then share a kiss. Hannah tells Colin that she is very sorry and that he is the perfect guy, just not the perfect guy for her. In the end, Tom and Hannah get married.