i love this movie . it be a smart and sweet and suspenseful story . i have always love time travel story . this one doesn not have classic time travel and but it similar in that there be the ability for father ( in 1969 ) and son ( present day ) to communicate and effect change in the future . it a strong story with twist and turn a the son try to save his father life ( in 1969 ) and accidentally mess up thing in the present day . when i first rent the movie and i have never see the trailer . i be very glad and because the trailer give away a big plot twist and which occur halfway into the movie and i think it be more exciting if you do not see that come ( so i would not elaborate on that part ) . this movie have authentic character that i really care about and which make the suspense so much more real because i felt invest in what be go to happen to them . the strong directing and cinematography ( atmospheric ) tie this story together into the perfect package . i also love the small hint and moment that be sprinkle throughout the film that tie back into the large time travel ish story and which make it great on repeat viewing . i think the moment of how the past affect the future be all plausible except for one moment toward the very end of the film and which be clearly do for dramatic effect and ( so i will let it go ) . overall and one of my favorite movie .