The nation’s largest movie-theater chain isn’t signing on to Paramount Pictures’ plan to shorten the length of time it takes for a movie to become available to watch at home.

Regal Entertainment Group told investors on an earnings call Thursday that it wanted to stick with the “traditional distribution model” that the studio is trying to shorten with help from other exhibitors.

Earlier this month, the Viacom Inc. -owned studio struck a deal with AMC Entertainment Holdings Inc. and Canada’s Cineplex Inc. that allows the studio to digitally release two coming features about two weeks after their screen count falls to 300 locations. It is the kind of partnership that was long considered a lost cause in Hollywood, as exhibitors have held fast to a traditional exclusivity “window” of 90 days, regardless of how many screens a movie is playing on in theater chains.

Regal operates more than 7,300 screens. Its closest competitor, AMC, has about 5,000.

Paramount’s plan gives participating exhibitors a portion of the digital revenue on the two movies out this October— “Paranormal Activity: The Ghost Dimension” and “Scout’s Guide to the Zombie Apocalypse.” Since the initial announcement, five smaller exhibitors have signed on. Participating theaters at this point represent about 30% of the exhibition market.