By Missy Schwartz
March 17, 2009 at 08:59 PM EDT

On April 18, HBO will premiere the movie adaptation of Albert and David Maysles’ famed 1975 documentary, Grey Gardens. The full-length trailer is making the rounds, and I must admit, I am pretty impressed. Drew Barrymore and Jessica Lange not only look eerily like the subjects of the original doc — that is, Edith Bouvier Beale and her daughter, Little Edie, cousins of Jackie Kennedy who, in the 1970s, were living in absolute squalor in their East Hampton estate — but they appear to have nailed their eccentric, blue-blooded personas as well. “This is the best thing to wear for today, you understand,” says Barrymore-as-Edie, recreating one of the doc’s most famous moments, in which the daughter shows off her, shall we say, unusual fashion sense. We also see a white-haired Lange-as-Edith languishing in bed, kittens a-crawlin’ all over her, and the divine Jeanne Tripplehorn popping up as Jackie O. Undoubtedly, some diehard fans of the original will be aghast that such sacred ground has been reinterpreted in feature-film form. But me, I can’t wait for April 18. Check out the trailer below, then compare it to footage from the doc (also embedded, after the jump). Tell me, Popwatchers, are you staunch characters? S-T-A-U-N-C-H?

Now, watch the real Edie.