PrimeWire

FYI, there’s no action whatsoever in this film as it’s more of an incredibly believable simulation of a serious documentary dealing with time travel, with a smattering of theories included.
Initially you’ll potentially be stopping yourself falling asleep or talking with company as you listen to ‘experts’ drone on about the lives of the characters as if they were real people, in a great amount of often trivial detail (as would only be proper and expected of a documentary). Apart from setting the scene and giving some backstory, this also helps create a sense of actually watching reality TV, which is almost essential with this style of movie-making.
Around thirty-five minutes in and if you’re listening or fast-forwarding, you’ll likely wake/shut up as those being ‘interviewed’ get to the plot of the film - the nerd in you will begin to get interested now.
Give it fifteen minutes more and you may well find yourself marvelling at how brilliant the film actually is at being able to be both mundane yet engaging, especially if you enjoy mentally exploring the complexities that come with theories surrounding time travel and are waiting to see how this film deals with such things.
Finally, in the remaining fifteen minutes or so (rest is credits) and primarily if you miss the annoyingly blatant whitewashing-over of a fundamental flaw in the making of the film itself (I had to skip back to make sure I’d not imagined it, but in hindsight, there was no other way they could have addressed it other than by not making the film), you’ll hopefully finish this movie having enjoyed the sense of being a part of the very believable reality they created, giving it more than my frustration-induced score of:
5/10