Amazon.com is offering a promotion where you can buy three HD DVD titles, and the least expensive of the three will be free.

Buy Two HD DVDs and Receive a Third Title for Free

The list of 55 eligible titles includes:

• The Adventures of Robin Hood (1938)
• Backdraft (1991)
• Batman Begins (2005)
• Beerfest (Unrated) (2006)
• The Big Lebowski (1998)
• Blood Diamond (2006)
• Blue Planet - IMAX (1993)
• The Bourne Supremacy (2004)
• Casablanca (1942)
• Casino (1995)
• Charlie and the Chocolate Factory (2005)
• The Deer Hunter (1978)
• The Departed (Combo HD DVD and Standard DVD) (2006)
• Doom (2005)
• Dune (1984)
• Eternal Sunshine of the Spotless Mind (2004)
• The Fast and the Furious (2001)
• Fear and Loathing in Las Vegas (1998)
• Field of Dreams (1989)
• Forbidden Planet (1956)
• The 40-Year-Old Virgin (Unrated Special Edition) (2005)
• The Fountain (Combo HD DVD and Standard DVD) (2006)
• Friday Night Lights (2004)
• The Game (1997)
• Goodfellas (1990)
• Happy Feet (Combo HD DVD and Standard DVD) (2006)
• Happy Gilmore (1996)
• The Last Samurai (2003)
• Letters from Iwo Jima (Combo HD DVD and Standard DVD) (2006)
• Mallrats (1995)
• March of the Penguins (2005)
• Meet the Parents (2000)
• The Mummy (1999)
• The Phantom of the Opera (Special Edition) (2004)
• Pitch Black (Unrated) (2000)
• Poseidon (2006)
• Purple Rain (1984)
• Ray (2004)
• The Road Warrior (1981)
• A Scanner Darkly (2006)
• The Searchers (1956)
• Serenity (2005)
• Shaun of the Dead (2004)
• Smokey and the Bandit (1977)
• Superman - The Movie (1978)
• Superman Returns (Combo HD DVD and Standard DVD) (2006)
• Terminator 3 - Rise of the Machines (2003)
• Tim Burton's Corpse Bride (2005)
• 300 (Combo HD DVD and Standard DVD) (2007)
• TMNT (Combo HD DVD and Standard DVD) (2007)
• Troy (2004)
• 12 Monkeys (1995)
• Unforgiven (1992)
• V for Vendetta (2006)
• Van Helsing (2004)

The offer seems to be limited while supplies last, so if any of these movies interest you, don't wait!