Although it hasn't even been out for a full day, it seems James Cameron's latest blockbuster is setting records on the Blu-ray shelves. According to The Hollywood Reporter, Avatar has already shattered the single-day Blu-ray sales record, previously held by The Dark Knight.

Early estimates are indicating that the Avatar Blu-ray has already sold more than 1.5 million copies today and combined DVD and Blu-ray sales were said to be north of 4 million total units sold, making it the easy favorite to be the top-selling release of the year.

It was said that retailers sold out roughly 60% of their Avatar Blu-ray stock already, with merchants also selling 50% of the DVD stock today.