Little help: Movie theater projection options?

ruouttaurmind thought this was worth mentioning said
1

I’ll be venturing into a movie theater on Wednesday for the premiere of Ready Player One. This will be my first trip to a theater since I watched Battle of the Five Armies in, geez, 2014? There were basically 2 choices available to me then: 3D or not.

RPO is offered in several formats, all within the same theater. I have no clue. I’m seeking some knowledge from avid moviegoers about the variations, hoping to narrow my options. The 2 closest theaters to me offer this movie in the following formats:

70mm, IMAX, IMAX 3D, RealD3D, BigD, Ciné 1, Ciné Capri, DolbyCinema, Prime, or just plain old movie.

WTH? I got the difference between 3D and not 3D. Beyond that…
¯\_(ツ)_/¯