To promote “Harry Potter and the Half Blood Prince,” Warner Bros and Google invited "Harry Potter" fans to hold up a drawing of a cauldron in front of the computer.
Your webcam scanned the drawing and turned it into a 3-D image that you then used in creating your own video about Harry and his pals. Once uploaded to YouTube, you could have been part of a “Harry Potter” contest.
The innovative campaign -- called the “Advanced Potion Making Experience” contest (see it here) -- is the latest in a new marketing alliance between Hollywood and Google aimed at the all-important “engagement” of movie fans and online users.
It’s unclear how well the fledgling effort is working, since only 27 people made videos worth considering for the contest, according to Google. Warner’s "Harry Potter" channel on YouTube has attracted 348,000 channel views since its debut in June. (The movie opens on Wednesday.)
However modest by web standards, the initiative is nonetheless the start of what is likely to become a growing marketing effort that combines Hollywood’s creativity with the techical capacity of the web.
“These types of programs allow people, who are for instance interested in 'Harry Potter,' to engage with the content in a more meaningful way," said Adam Stewart, Google’s entertainment industry director. "The more engaged you are with the content, the more interested you are in actually seeing the movie and going when it opens.”
In other recent examples of online marketing, YouTube offered a channel for Fox’s “I Love You Beth Cooper.” The movie is about a high school student who professes his love for a fellow classmate, and the YouTube channel invites viewers to share a confession on the site.
The rise of “online engagement” ads for movies comes on the backdrop of rising trend toward marketing online overall.
A five-year forecast released last week by Forrester Research predicts continued growth in interactive marketing, a figure that will approach $55 billion and account for 21% of all marketing spend come 2014.
Broken down (left, all figures in millions), the study says annual marketing spend on social media and online video will each exceed $3 billion. Overall display advertising, which includes online video, will total $16.9 billion, and search marketing could hit $31.5 billion. (see full study results)
“TV audiences are distributed across hundreds of channels and people are more distracted," said Shar VanBoskirk, author of the Forrester study. "It is forcing heavy TV advertisers to rethink what they do. The result is that there is a lot of experimentation in the use of interactive channels.”
VanBoskirk noted that these campaigns are far less expensive than traditional advertising. “The tools we are talking about can be 1/10 the cost of a TV campaign,” she said.
Many of these interactive tools have already become a common part of movie marketing, but the way the pie is divided will continue to change.

