Starting Tuesday, people who clicked "like" on the Facebook page of "The Dark Night" will be able to click a "rent" icon and pay 30 Facebook credits, or $3, to watch the movie.
The offering is only available to people in the U.S. Warner Bros says it will add other movies in coming months. Renters will have access to the movies for 48 hours. Warner Bros. didn't say how much it will cost to buy movies.
Shares of online movie rental company Netflix Inc. are down more than 4 percent in midday trading.
