Fritz Lang's 1927 silent-film masterpiece "Metropolis" has been restored with the addition of 25 minutes of long-lost footage, and it's coming to the Coolidge Corner Theatre for a week.

Roger Ebert has been tweeting about this restoration for days. In 2008, when the curator of the Buenos Aires Museo del Cine discovered a 16mm duplicate negative that included 25 minutes of "lost" footage not seen since the film's opening, when the distributor ordered cuts. This is now the movie Lang intended to make, a classic of dystopian futurism that presaged movies like "Blade Runner." The new print shows at the Coolidge for a week beginning June 4.

EXTRA AWESOMENESS: There's a special show June 4 at 8 p.m. featuring live music by Cambridge's Alloy Orchestra. The Alloy will perform the revised "Metropolis" score they recently debuted before a full house at Graumann's Chinese Theater in Los Angeles. The three-member band wrote a score for the movie more than a decade ago, but has reworked it in honor of the new restoration.

Details: For screening times, visit www.coolidge.org. Tickets to the June 4 screening with Alloy Orchestra are $20/general admission and $17/seniors. Tickets to all other screenings are $9.75/general admission $6.75 Coolidge Corner Theatre members. Advance tickets can be purchased online at the website or at the box office, 290 Harvard Street, Brookline. For more information visit the web site or call 617/734-2500.

NOTE: I had a wrong date here for the Alloy performance for a while. It's June 4.