I'm pretty good at commercials avoidance, so the only film marketing that really gets to me is trailers before other films I watch. (In fact, that led me to our-tastes-differ No Country For Old Men, that and Bardem.) I also have the tendency to NOT read film critiques for films that really interest me before watching, for fear of spoilers. After watching film, if I liked it (or hated it very much), I read the critiques to see what others saw in it, an exercise often resulting in cursing the film critic for being stupid/ignorant/pretentious...

*Traitor*, n.
A benighted individual who perceives an illusory distinction between serving his nation and abetting the criminals who govern it.