Class of 3000.
"Mars Attacks!" (1996 film).
The Dukes of Hazzard
Batman Returns
Devils Rejects
The Last House on the Left
The 1970 film Love Story had the tagline (and famous quotation) "Love means never having to say you're sorry."
The tagline for the upcoming live action film "The Last Airbender" is "Four nations, one destiny."
According to the link below, where you can review nearly 10,000 taglines for films, a film poster tagline is "An attempt to capture the essence of a film or describe its plot in a handful of words."
Hitch
"Mars Attacks!" (1996 film).
Scarface
Pirates of the Caribbean
The Dukes of Hazzard
The Skeleton Key
Wall Street (1987)
Terminator
Cobra*