An original Disneyland 1955 opening day attraction celebrating some of Walt Disney’s earliest animated films starring Mickey Mouse and other beloved Disney characters has added merchandise for sale inside its walls.

Disneyland’s Main Street Cinema has been transformed into the new Cartoons and Collectibles gift shop on Main Street U.S.A., the entry promenade of the Anaheim theme park, to the dismay of some outraged longtime fans, who took to social media to vent their frustrations.

Angry fans took to social media, tweeting at Disneyland’s official accounts to call the change an “attack on a piece of Disneyland history,” an “insult to Walt’s memory” and a “disgrace to what Walt intended the cinema to be used for.”

“Terribly wrong and incredibly tacky!” Disney fan L.G. Moore tweeted. “There’s so much retail space on Main Street already!”

“We continue to operate Main Street Cinema as a theater and there have been no changes to film showings,” Disneyland officials said in a prepared statement. “We’re looking at a variety of ways to drive interest in this beloved location.”

Prior to the change, the dimly-lit Main Street Cinema showcased some of Disney’s first animated films on six movie screens. Now a cash register has been moved into the vintage movie palace along with shirts, Minnie Mouse ears headbands, plush dolls, coffee mugs and Americana merchandise on brightly-lit displays.

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The screens still show the Disney cartoon shorts, but there are merchandise displays in front of or next to them.

“The thing that bothers me the most about Main Street Cinema being turned into *yet another store* is that there isn’t even anything unique about what’s on sale,” tweeted James B. Jones, a video game designer from Los Angeles and self-proclaimed “Disney nerd.” “It’s the same mugs and t-shirts and Americana stuff that people already see EVERYWHERE.”

Other Disneyland fans hoped the change would draw more foot traffic into the underused space. The Main Street Cinema at Disney’s Magic Kingdom theme park in Florida was converted to a store in 1998.

“It’s an amazing and beloved part of Disneyland history, but almost nobody goes in anymore,” tweeted Disneyland Gazette, a Disney fan site and podcast. “Nothing wrong with trying out some new ideas for this lovely space.”

The classic Disneyland attraction pays tribute to the origins of the Disney film studio and the cartoons that made Disneyland possible. Billed as a “nostalgic journey back to the beginning of Disney animation,” Main Street Cinema continuously screens 6- to 8-minute Disney animated shorts that originally aired before full-length feature films.

The landmark “Steamboat Willie” is the cinema’s marquee film. The 1928 short that made Mickey Mouse a star was directed and voiced by Walt Disney himself. Other cartoons screening in the cinema include: “Plane Crazy” (1928), “The Moose Hunt” (1931), “Traffic Troubles” (1931), “The Dognapper” (1934) and “Mickey’s Polo Team” (1936).

Main Street Cinema has played classic Disney cartoon shorts since the 1970s. In 1955, the collection of films included a Keystone Kops comedy and a risque belly dancing sequence. Among the opening day films was the 1914 “Gertie the Dinosaur,” an early animated work that inspired a young Walt Disney. Through the years, the theater has screened films starring Charlie Chaplin, Rudolph Valentino, Gloria Swanson and Douglas Fairbanks.

It remains to be seen if the new merchandise in the Main Street Cinema means the attraction will become a permanent retail location or merely a temporary pop-up shop.