‘I Am Legend’

It’s the end of the world as we know it ... or so it seems to scientist Robert Neville (Will Smith) of New York City, apparently the only survivor of a deadly virus that has killed off humankind and left only a few deadly mutants. Can Neville find a way to reverse the effects of the virus by using his own blood? The only bonus features on the single-disc edition are some animated scenes and a ROM link for additional animation, while the two-disc Special Edition comes with an alternate version of the movie, which includes not only a new ending but some additional scenes throughout the film. (One and two discs, Warner Home Video, $28.98/$34.99, rated PG-13)

‘Atonement’

Keira Knightley, James McAvoy and Saoirse Ronan star in this tragic romantic tale, set primarily in the 1930s and ‘40s, about a lie that irrevocably alters the lives of three people. The DVD includes a commentary by director Joe Wright, deleted scenes and two documentaries — “Bringing the Past to Life: The Making of ‘Atonement”’ and “From Novel to Screen: Adapting a Classic.” (Universal Studios Home Entertainment, $29.98, rated R)

‘Enchanted’

This modern-day fairy tale from Disney blends live-action footage with animation as a storybook princess named Giselle from mythical Andalasia is transformed into a young woman (Amy Adams) in contemporary New York City. Bonus features include deleted scenes and bloopers; “Pip’s Predicament: A Pop-Up Adventure” featuring Giselle’s chipmunk pal Pip; and a documentary, “Fantasy Comes to Life.” (Walt Disney Home Entertainment, $29.99, rated PG)

Also new this week

‘Southland Tales’
(Sony)

‘Love in the Time of Cholera’
(New Line)