I hate movies with shaky shots, always moving, blurry shots.... garbled dialogue. Terrible

I have watched this 2x only (intend to watch again). From what I got, the phones breaking could be that:

1) they are transitioning to another "parallel" flow of reality (Em's phrasing that she had to "parallel park" being a foreshadowing): or 2) in my opinion most likely, just a simple but weird sympton of what is about to happen.

The "mixing up" will only happen a little later, as the comet starts blazing over the house area, where it will create some sort of dark vortex roulette between the house and the driveway. The very first case apparently being the Amir and Laurie that arrive (late) and, as she points out, "underdressed" (though this could be just part of her vixeny show-off personality mentioned). In their own reality, this specific couple could indeed be going to a dinner party meant to be more casual, which did not happen due to the "roulette effect" placing them somewhere else. She is also not the Spanish Yoga practitioner that some heard about, and the fact that she works in out reach programmes for difficult youths suggests a far less futile personality than previously implied.

Now let us stop here and assume for a minute that: 1) no one had left the house, even during blackouts or door knocks; and 2) no one mentioned the book about Quantum De-Coherence. Thus, no one would have any reason to believe the possibility of different/ parallel self-versions co-occurring, due to some rare and weird cosmic event. Slight "incoherences" that pop-up here and there (like Laurie not recogninsing Mike as a known protagonist from a show she said she loved) could be easily assumed to be some sort of mix up that have happened dozens of times in our lives, specially considering people we are not familiar with. For instance, I am a karate practitioner for over 30 years. Every single person who knows me knows that, but the couple that befriended my sis about 2 months ago could say at some party "yeah, heard you are some judo teacher...". Now there is no reason for anyone to consider "wait, they should know otherwise, so these must have crossed another reality". We just assume it as some normal mix up, like many others. BUT if you add a rare cosmic event and a book that some brainiac took notes on about parallel planes of existences, all this potentialises the mix up doubt into some more complex physics/ meta-physics event. "What else is off tonight? Who are these people indeed?"- you can easily see how paranoia might escalate. Maybe there is a reality where I joined a judo club and progressed to be a teacher, and this newly befriended couple somehow crossed it, because of this cosmic event.

Of course - the movie goes way beyond that simplorious example, as events take place in instants and can change shape drastically - like they always return to a different house, one has broken wine glasses, the other has different glasses, Mike appears with shirts buttoned differently and unshaven later on -, so the point of this movie might very well be that there is indeed no way to sort out the mess of the past in the present: once you are in "the vortex", you cannot go back and adjust that route.