Something to think on...
I've seen this movie many times and have enjoyed it each time. I'm a huge fan of the late Natalie Wood. I've read several biographies on her, and one of the topics covered is that of an alleged affair she was having with Walken during this film. And then the tragic events surrounding her mysterious death...with Walken being there. Some people don't think she was having an affair, but one part of this film gave me a "Red flag" vibe about it:
The scene where Karen and Michael are sitting on their bed, under the sheet. She sings him a song, which is very endearing. But then there is a the line that raised the flag for me... Michael says "Marry me." and Karen responds with "I will." Now in the movie plot, Michael and Karen are married but estranged. Not divorced, but estranged. Why then, would Michael ask her to marry him, when she already is? It's no secret that Wood and her husband Robert Wagner were indeed at a very rocky point in their marriage. They had an altercation during her t.v. film "From Here To Eternity", where Wagner accused Wood of sleeping with William Devane. Fast forward to "Brainstorm". Wood is on location with Walken in North Carolina, and Wagner in California with their kids. Wood comes home for Thanksgiving and brings Walken with her. They all go for a sail to Catalina, where a huge argument breaks out between the 3 of them, then by the next morning Wood is dead. Neither Wagner nor Walken have spoken of that night, with Walken keeping an absolute silence. And all I can hear in my head, is Michael asking Karen "Marry me." and Karen saying "I will."
I don't think it's too far-fetched of a theory, but what do y'all think?