The film follows several characters as they navigate their relationships and emotions on Valentine’s Day:
Reed Bennett (Ashton Kutcher) is a florist who proposes to his girlfriend, Morley Clarkson (Jessica Alba), but she reveals that she is married and was planning to break the news to him.
Julia Fitzpatrick (Jennifer Garner) is an elementary school teacher who is dating Dr. Harrison Copeland (Patrick Dempsey), a heart surgeon. She discovers that he is married and breaks up with him.
Kara Monahan (Jessica Biel) is a publicist who is single and dislikes Valentine’s Day. She organizes a “I Hate Valentine’s Day” party for singles at a local bar.
Kate Hazeltine (Julia Roberts) is a captain in the U.S. Army who is returning home from a tour of duty in Iraq. She sits next to Holden Wilson (Bradley Cooper) on her flight home and shares her experiences with him.
Liz Curran (Anne Hathaway) is an assistant who moonlights as a phone sex operator. She starts dating Jason Morris (Topher Grace), but struggles to reveal her second job to him.
Grace Smart (Emma Roberts) is a high school student who is in love with her friend Alex Franklin (Carter Jenkins), but he is interested in someone else. She eventually confesses her feelings to him.
Sean Jackson (Eric Dane) is a professional football player who wants to come out as gay, but worries about the potential backlash from his teammates and the media.
As the day progresses, each character faces various challenges and revelations about love and relationships. Some find happiness and fulfillment, while others experience heartbreak and disappointment.
In the end, the characters come together to celebrate Valentine’s Day at Kara’s party, where they reflect on their experiences and the meaning of love. Despite the ups and downs, they realize that love comes in many forms and that they are grateful for the people in their lives.
“Valentine’s Day” is a feel-good romantic comedy that explores the complexities of love and relationships, offering humor, heart, and a celebration of the human spirit on the most romantic day of the year.