The problem with the film is Spielberg’s devotion to old-school storytelling tropes doesn’t always cohere. There’s a needling reliance on gimmick, a curiously dated innocence about media circulation, while the performances scour for greater resonance than what’s on the page. Emily Blunt's emotionally zesty performance infuses the drama with sentiment. Margaret is the grounding force, reflecting directly what people are battling, hiding. Just eye contact with strangers is enough to touch their secrets, aches and hopes. Through uncanny encounters, she draws them back on course. She's the key to humanity. The screenplay juggles three parallel tracks which ultimately hew together. Eve Hewson too is tremendous as David’s girlfriend, Jane, summoning exacting pain and resolve in scenes with Colin Firth. But the conflicts over her conception of spirituality, her past nun life might be broadly spelled out but never reach a potent, poignant place. There’s vague, thinly developed spiel about “divers”, “experiencers”, all predicated on the alien device that enables leaps from one space to another. It’s a sort of mental mapping that can be misused for extortion and terror. Jane’s relationship with faith and divinity becomes the launchpad for the film's existential enquiries.