Open Brainstorms

Related to idea 3: You could have theme-boxes. Say, the top 20 movies of all time (by imdb.com ratings, perhaps?) or the top 20 grossing, or if you like a particular star you could have something like the top 20 John Wayne films etc.

mail your database with an offer to win something next time they come in to your store, give them one entry per movie hired per month so it will encourage them to have more chances to win, the more times they rent a title, have a different prize monthly. even better would be if the people who supply your movies could supply the prize, i'm sure with them dealing with all the movie studios they would get some nice merchandise, signed posters etc. that would be unattainable to the general public. t

create something like seventymm.com - check out this site- amazing

give customers the option of rating movies and leaving the rating on some paper in the box when they return it, then have the movies in the store list the average customer rating on them

Renting hard drives with a pack of 50 movies on them instead of renting a single movie DVD. They could be rented for a couple months at a time. The whole extra burden of checking in and checking out individual movies would be removed.

Renting the new releases at midnight on Mondays instead of Tuesday morning.

A Drive Thru movie rental store with a drive thru dropbox