Complex sentence: By the end of November, Mikkelsen and Stuhlbarg were confirmed to have been cast, alongside Amy Landecker and Scott Adkins in unspecified roles, and C. Robert Cargill revealed the next month that he had been working on the script for the past year.
Split into simpler sentences: By the end of November, Mikkelsen and Stuhlbarg were confirmed to have been cast, alongside Amy Landecker and Scott Adkins in unspecified roles. The following month, C. Robert Cargill revealed he had been working on the script for the past year.