The movie King Kong is currently being promoted throughout Europe with an co-marketing campaign together with Pringles. A mini-site (by Grey Interactive) is online featuring the trailer, some downloadable goodies and a few e-cards which aren't really worth sending. Try leaving the site in the background... sometimes you hear King Kong's steps and the screen starts shaking.
Two advergames are also part of the online effort. Kong Jump (by Inbox Digital) will take a lucky winner to New Zealand.
The other one, Find Kong, reproduces the popular three-cards game... you bet your bananas to win :-)
Pringles is also running an on-pack promotion giving away prizes connected to the movie.