I was watching the beginning of a movie that looked interesting but had to leave and never saw more than a few minutes. It started with a bunch of people bursting out of the ocean and swimming to the shore. They all were dressed in white (I think), then they found some sort of towers... That is all I remember, any clues?

I was watching the beggining of a movie that looked interesting but had to leave and never saw more than a few minutes. It started with a bunch of people bursting out of the ocean and swimming to the shore. They all were dressed in white (I think), then they found some sort of towers... That is all I remember, any clues?
Do you know when it was you saw it?

Within the last two years, most probably last year.