LOS ANGELES  As plot twists go, this one is a doozy: after an eight-year legal battle over the lease of a movie theater, the former owners of a multiplex in Aspen, Colo., now own the rights to Ingmar Bergman’s entire film library.

Or do they?

In late December an amateurish-looking Web site popped up offering for sale on DVD dozens of classic Swedish films, including those of Bergman, the film legend responsible for classics like “The Seventh Seal” and “Cries and Whispers.” The site, SwedishClassicFilms.com, also offered to sell exhibition rights.

The offer, so unusual as to be unbelievable, was not extended by Svensk Filmindustri, the giant Swedish company that has long held the rights to Mr. Bergman’s work and to the other Swedish art house classics on the Web site’s list, including Bo Widerberg’s “Elvira Madigan” and Lasse Hallstrom’s “My Life as a Dog.” Instead, the offer came from the former owners of the Isis Theater in downtown Aspen.

In July a Colorado judge transferred all of Svensk’s film rights to Isis Litigation L.L.C. after Svensk refused to pay damages resulting from a renovation of the Isis Theater in the late 1990s. Now, having finished recording its bounty with the United States Copyright Office  and with the documents to prove it  Isis has set out to make some money.