I really liked the film, directed by DENIS VILLENEUVE (SICARIO, which I like very, very much) and starring AMY ADAMS, JEREMY RENNER, and FOREST WHITAKER.
It is definitely a thinking-person's sci-fi, and all of the linguistic info and theory is quite fascinating––especially for someone into words and their meanings, like I am. However, the story does take a turn and eventually spirals right into the mysterious vortex of the always confusing time paradox.
Think of it like this: when you're viewing the film, your experience could be currently happening or also might be a memory of it happening, or also might be a memory of it happening in your future. Wait! Well, guess what? It's all three of the above, because past, present, and future are all occurring simultaneously. So if you love or hate the film, don't worry, you already did. Or it's just a memory of you loving or hating it in the future. Wait! Ok, this is getting really confusing.
Nonetheless, ARRIVAL is worth seeing for many reasons and it does make sense in the end. I think. I thought? I will think it does? Schwoooo!...if nothing else, ARRIVAL will give you dinner conversation for some time to come.
Enjoy the trailer here: https://www.youtube.com/watch?v=YVwQNDS-Zes