About the rule of 180 degrees and achieve film look in the videos?

I am an amateur and want to learn cinematography.To achieve the film look for a video, a very well known and widely used phenomenon is the rule of 180 degrees. I have found this over and over and across the numerous websites, blogs articles and books.
So taking this as basic rule to be followed, I started shooting videos in 25 fps and 50 shutter speed settings. But one day I was shooting some video outdoors in bright day sunlight. So due to excessive light, using the above settings, the video was extremely over exposed and every thing was looking bright. To correct the exposure, I had to increase the shutter speed up to around 1000th of a second and then the video got correctly exposed.(my ISO was 200 and aperture 3.5 using Nikon D3200)
So now my question is that following such changes in shutter speed, will it affect my video to achieve the film look? This is the breach of 180 degree rule too. What should one do in such circumstances?

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