As the subject states: movie coincidences... can you name a few?
I'll start with a few movies that got released by different companies within the same year, that have a lot in common:
(2013) The White House is getting a beating:
Olympus Has Fallen [http://www.imdb.com/title/tt2302755]
White House Down [http://www.imdb.com/title/tt2334879]
(2012) Abraham Lincoln vs vampires, zombies and as himself
Abraham Lincoln: Vampire Hunter [http://www.imdb.com/title/tt1611224]
Abraham Lincoln vs. Zombies [http://www.imdb.com/title/tt2246549l]
Lincoln [http://www.imdb.com/title/tt0443272]
(2012) Snow White movies
Mirror Mirror [http://www.imdb.com/title/tt1667353]
Snow White and the Huntsman [http://www.imdb.com/title/tt1735898]
(1998) asteroids and comets visiting earth
Armageddon [http://www.imdb.com/title/tt0120591]
Deep Impact [http://www.imdb.com/title/tt0120647]
(Asteroid [http://www.imdb.com/title/tt0118261])
There were a few more, but I cannot remember. This will have to do for now.
I'll start with a few movies that got released by different companies within the same year, that have a lot in common:
(2013) The White House is getting a beating:
Olympus Has Fallen [http://www.imdb.com/title/tt2302755]
White House Down [http://www.imdb.com/title/tt2334879]
(2012) Abraham Lincoln vs vampires, zombies and as himself
Abraham Lincoln: Vampire Hunter [http://www.imdb.com/title/tt1611224]
Abraham Lincoln vs. Zombies [http://www.imdb.com/title/tt2246549l]
Lincoln [http://www.imdb.com/title/tt0443272]
(2012) Snow White movies
Mirror Mirror [http://www.imdb.com/title/tt1667353]
Snow White and the Huntsman [http://www.imdb.com/title/tt1735898]
(1998) asteroids and comets visiting earth
Armageddon [http://www.imdb.com/title/tt0120591]
Deep Impact [http://www.imdb.com/title/tt0120647]
(Asteroid [http://www.imdb.com/title/tt0118261])
There were a few more, but I cannot remember. This will have to do for now.