Complex sentence: In an unusual move, the films "Ring" and "Rasen" were filmed and released concurrently with separate screenwriters, crews and production companies but with a shared cast, the idea being that it would generate more interest and more profit.
Split into simpler sentences: In an unusual move, the films "Ring" and "Rasen" were filmed and released concurrently with separate screenwriters, crews and production companies and a shared cast. The idea being that it would generate more interest and more profit.