A Guy Thing
- taona: 2003
- Firenena: United States of America
- Genre: Comedy, Romance
- Studio: David Ladd Films, Metro-Goldwyn-Mayer
- Keyword: infidelity, police, blackmail, seattle, washington, romantic comedy, stalker, misunderstanding, dance lesson, in-laws, opposites attract, fiancé fiancée relationship, bachelor party, taking a risk, mismatched couple, imminent wedding, weed, rehearsal dinner, mismatched relationship, comedy of errors, working for father-in-law, crazy ex, wearing a wire, lies to cover lies, in love with someone else, not right for each other, playing it safe
- tale: Chris Koch
- Cast: Jason Lee, Selma Blair, Julia Stiles, Shawn Hatosy, Lochlyn Munro, James Brolin