Whiteout

Immediate Family: Fragrance Ads
Distant Relative: Premonition
Family Gossip: Below are some shots of the poster around Los Angeles.

World's Greatest Dad

Immediate Family: Disaster Movie, Epic Movie, most Eddie Murphy movies
Distant Relative: The Great Ziegfeld (very distant!)

Final Destination

Immediate Family: Prom Night
Distant Relative: Straw Dogs
Family Gossip:
The Straw Dogs connection may be thin. But for me, that image is so clever and powerful that any movie poster with broken glass in it owes a debt to the Straw Dogs poster.

The Informant

POSTER #1
Immediate Family: Saul Bass Posters, Dead Men Don't Wear Plaid, What About Bob?

POSTER #2
Immediate Family: Linotype ad, The 40 Year Old Virgin
Family Gossip: A few shots of the one sheet and billboard around town.