The new iTunes Store movie rental program looks like it'll be a winner -- combined with the revised Apple TV, I can see my wife and I watching many more movies (though the 24-hour limit poses some problems for us). In my first visit to the new rental store, though, it became obvious it's still a work in progress. For instance, there's no way that I can see to view all the available rentals. Instead, you have to look through all the movies, and find those that are available for rent.
Another issue, and the subject of this hint, is that you can't just drag a movie's entry to a playlist -- as you can with a song -- to create a list of "Want to Rent" movies. Hopefully a "wish list" feature is coming soon to the store, but until it does, here's a workaround. Just go to the screen of the movie you'd like to rent, then drag the movie's title from the header...

Mac OS X Hints
http://hints.macworld.com/article.php?story=20080116071253117