If Mission: Impossible – The Final Reckoning really is as final as its title implies, I can perhaps forgive the film for including so very many flashback images from the franchise's previous seven installments, including images that are regurgitated two or three times over. But if this is indeed the series' end – I mean, y'know … we'll see … – I'm still not sure I can forgive director/co-writer Christopher McQuarrie's latest for being so dully protracted and humorless, or for the decision to transform super-operative Hunt, and by extension Tom Cruise, into a veritable messiah.