FULL SPOILER-FREE REVIEW @ https://www.firstshowing.net/2023/review-mi-dead-reckoning-part-one-is-a-summer-blockbuster-in-its-purest-form/
"Mission: Impossible - Dead Reckoning Part One delivers precisely what it set out to do: stunningly frenetic, relentless on-location action with adrenaline-charged energy levels. A 163-minute runtime rarely feels this light, thanks to the contributions of the sublime cast – Hayley Atwell is outstanding – and the truly memorable score that elevates all the otherworldly set pieces.
It has the "problem" of being the first of two parts, with some unnatural, repetitive exposition scenes that get in the way of its progress, in addition to a somewhat generic, ambiguous narrative around A.I.
Nevertheless, it's a summer blockbuster in its purest form, as you'd expect from the icon Tom Cruise, to whom we owe our allegiance."
Rating: A-