That's the tricky part.
Now the tricky part - picking up the wraps!
Getting movies to the screen and the DVD racks, and persuading people to see them, is the tricky part.
Making the changes to the applications will be the tricky part, as each application may have its own unique way of connecting to the database.
The tricky part is analyzing the results, either by looking for trends or using statistical analysis to uncover patterns and correlations.
