Complex sentence: Cameron ultimately dropped this idea after deciding the audience would find it too confusing: eventually casting came down to Robert Patrick, as a deliberate contrast to the original Terminator-I wanted to find someone who would be a good contrast to Arnold.
Split into simpler sentences: Cameron ultimately dropped this idea after deciding the audience would find it too confusing. Eventually casting came down to Robert Patrick, as a deliberate contrast to the original Terminator: I wanted to find someone who would be a good contrast to Arnold.