- HD 1080
- Runtime: 101m.
- Status: Released
- 1
- Languages: en
- Country: United States of America
- Director: Chris Koch
- Stars: Jason Lee, Selma Blair, Julia Stiles, Shawn Hatosy, Lochlyn Munro
- keywords: 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
- Production_studio: David Ladd Films, Metro-Goldwyn-Mayer
- Slogan: He finally found the perfect girl(s).
- providers: fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus
- The A Guy Thing is featured in the top rankings of 2003
- #71 in Top Romance Movies of 2003
Paul Morse is a good guy. When his friends throw him a wild bachelor party, he just wants to keep his conscience clean -- which is why he's shocked when he wakes up in bed with a beautiful girl named Becky and can't remember the night before. Desperate to keep his fiancée, Karen, from finding out what may or may not be the truth, he tells her a teensy lie. Soon his lies are spiraling out of control and his life is a series of comical misunderstandings.