Before it spirals into silliness, "Mrs. & Mrs. Smith," starring Brad Pitt and Angelina Jolie, is fairly droll and stylish. They play married assassins, apparently hot for each other, who gleefully try to kill each other, but that silliness sinks the movie. Despite bad reviews, and perhaps because of the Pitt-Jolie gossip fuel, the movie wound up a solid moneymaker following its June release.

Unrelated to the 1941 Alfred Hitchcock comedy with the same title, the film is certainly easy on the eyes. There are the stars, for one thing, but also well-appointed locations in New York and Rome.

John and Jane Smith have been married for five or six years, but somehow have kept their deadly but lucrative careers a secret from each other. When they're both coincidentally assigned to kill the same person, the truth dawns on them. Out come the guns and knives that each has hidden in their lovely suburban house.

The DVD being released on Tuesday (Fox, 120 mins., PG-13, $29.98) includes deleted scenes and commentary by director Doug Liman ("Swingers," "The Bourne Identity"), screenwriter Simon Kinberg and others.

If you lived in Antarctica and had nothing to do but stand around and freeze, you would walk 70 miles across ice and snow for sex. But you wouldn't look as cute and amusing doing it as the intrepid heroes of "March of the Penguins," the hit French documentary coming to DVD Tuesday (Warner, 84 mins., G, $28.98).

The movie, narrated in English by Morgan Freeman, follows the amazing trek of emperor penguins as they migrate to a breeding ground, find mates, lay eggs, then endure unspeakable hardship in feeding themselves and their new chicks. The DVD includes a National Geographic documentary covering much the same ground.

Two other new disks also look at remarkable birds: "Life in the Freezer" (BBC, 180 mins., $14.99), David Attenborough's 1993 TV series about Antarctica, and the forthcoming "Wild Parrots of Telegraph Hill" (Docurama, 83 mins., G, $26.95), about colorful, brainy parrots residing in San Francisco.

While Julie Andrews tried to bury her goody-two-shoes image late in her career by going topless in "S.O.B.," her young "Princess Diaries" co-star, Anne Hathaway, decided not to wait so long. She gets down and dirty in the direct-to-DVD drama "Havoc" (New Line, 92 mins., not rated, $19.97), playing a bored, well-off suburban Los Angeles teen who looks for thrills in the barrios of East L.A.

Allison (Hathaway) and pal Emily (Bijou Phillips) start hanging with drug dealers (led by Freddy Rodriguez of "Six Feet Under") and soon agree to a sexual initiation into the gang. Famed documentarian Barbara Kopple directed the drama, which is disturbing, though not as much as its apparent models, Larry Clark's "Kids" and "Bully." It was written by "Syriana" writer-director Stephen Gaghan.

Crash test dummies aren't nearly as tough as the people we see in the documentary "Murderball" (THINKFilm, 86 mins., R, $29.99). Henry Alex Rubin and Dana Adam Shapiro tell the story of quadriplegics who play a highly competitive rugby-like game on a court, mercilessly bashing their wheelchairs into each other. There's a poignant story behind every player - Mark Zupan, for one, will get your attention - as they strive to make it to the Paralympic Games in Athens. The DVD has commentary tracks by the players and filmmakers and a segment about the movie with MTV's "Jackass" stars Johnny Knoxville and Steve-O, among other extras.

Movie experts who thought they'd seen all of Charlie Chaplin's work had their eyes opened when documentarian Kevin Brownlow came out with "Unknown Chaplin" in 1983 (it aired on PBS in 1986). At last, on Tuesday, it comes to DVD (A&E, 163 mins., $24.95).

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