One of the more intriguing revelations in Friday’s legal filing was the description of an audiotape of a two-hour meeting in January 2011, during which Ms. Taymor apparently expressed willingness to make improvements to “Spider-Man,” which was then in its second full month of preview performances. The portions mentioned in the court filing seem to show them concurring on changes to the show and sharing responsibility for its problems.

The “Spider-Man” lead producers, Michael Cohl and Jeremiah J. Harris, filed a countersuit against Ms. Taymor seven weeks ago charging that she had been in breach of her contract by refusing to work cooperatively with them. But at the taped meeting, according to the court papers, both Ms. Taymor and Mr. Cohl identified flaws with the show, and Bono admitted that his and the Edge’s songs were a problem. Mr. Cohl is quoted in the transcript as telling the room to “fix the songs as best we can, come up with a new ending, fix the story to whatever degree we can.” (According to the legal papers the meeting was recorded by a participant other than Ms. Taymor; no name was given. The e-mails in the court filing were either sent to Ms. Taymor or obtained somehow by her or her lawyers.)

The e-mails disclosed by Ms. Taymor indicate that she was pleading for help during the problem-plagued performances last winter. “We need you,” Ms. Taymor wrote to Bono and the Edge on Dec. 19, 2010, as they were finishing a U2 tour in Australia. “It is not easy to change anything, but now I think it is a matter of lyrical and musical changes — and perhaps cutting a scene or two from the second act.” Some of those e-mails suggest that the producers were sympathetic to her at times, occasionally siding with her criticisms of the score by Bono and the Edge.

A sense of betrayal of Ms. Taymor by her onetime friends — especially Mr. Berger, her writing partner — courses through the filing. The e-mails show Mr. Berger and Mr. Tsypin, the designer of the complex set, to be planning a rewrite — Plan X — that would avoid using a giant web in the finale that Mr. Tsypin was apparently struggling to deploy. Several Berger e-mails reveal him laboring over Plan X and urging others not to tell Ms. Taymor about his work, even as he met with her to discuss changes that she intended to make.

“I’ve gone along with this, despite it being what Edge called a ‘schizophrenic’ situation,” Mr. Berger wrote in an e-mail to one of the lead producers, according to the Taymor legal filing. “Please know that anything you need from me — I’m at your service.”

Elements of Plan X were ultimately adopted in the overhaul of the show that followed Ms. Taymor’s firing last March. Mr. Berger declined to comment on Sunday, citing the legal proceedings.

Among some of the performers and crew members of “Spider-Man” the e-mails about Bono in particular dominated the backstage gossip over the weekend. An e-mail written by Mr. Berger alleged that one late-night meeting with Ms. Taymor and Mr. Cohl was derailed because Bono “showed up in our room with Christy Turlington and a couple other supermodels, and he had already had a few beers, rendering him useless.” That meeting — meant to discuss changes to the show — was postponed and then never happened, Mr. Berger wrote in the e-mail.

Mr. Miramontez, asked to reach out to Bono for comment, replied on Sunday regarding the contents of that Berger e-mail, “The producers won’t even dignify them with a response.”