Thoughts on - Arrival (Spoilers)

Hi all,
         My feelings after coming out of the cinema was that this was a bit of a missed opportunity. The alien spaceships looked more like floating giant seeds than spacecraft, as you can see in the trailer. Rather boring. (They could have omitted the spacecraft landing out of the trailer, at least that would have been one more surprise to be had, even if it may have been a bit of a wet blanket moment.)  The aliens were shrouded in mist. Quite possible for their atmospheric needs, trying to add to the tension, but boring once again. Not much texture or colouration in their skin, another opportunity missed.
         The alien language and its actual decoding was handled in an interesting way, but why would the aliens have evolved its written / squirted usage in the first place? Just sound would suffice, unless they have genetically modified themselves at a later date. How were they able to control the smoke / ink once it had been emitted from their "hands" and into their atmosphere ?
         How had they managed to contact Dr. Bank's mind and not everyone on the planet (I know, that would blow the film), she was in the right place at the right time.
         I will confess that I had to leave before the film had finished, (about 5 mins to go, she was talking to an ambassador) so I may not have gotten some of the plot details, but I did not miss much, according to my friend who had seen it earlier.

A qualified 5 out 10.

Ivor