How do I know that "Date Night" will be terrible?

When a movie's posters show a vague title with nothing but the faces of the costars, you know the movie will suck. If it didn't suck they would give you some image from the movie, or a tagline to show it's style. "Date Night" has neither. The posters are just Tina Fey and Steve Carell looking haggard. They're trying to sell you on these hilarious people's reputations alone.
And I know what you're thinking. Tina Fey would never do a crap movie! Right? Wrong. That's exactly what they want you to think. In fact, that's what they're counting on.
Where's my Proof? "Seven Pounds."
A little film starring Will Smith that was nonsensical and awful; And what was the poster for it? Will Smith's face. A big close up of Will Smith's face.
So don't be tricked by "Date Night."
Or go see it anyway. I just love that Tina Fey and Steve Carell. Those kids are going places.