2K released two new trailers today for BioShock: The Collection. The first trailer is a comparison trailer for the opening of the original BioShock game between the original release and the updated version coming out on September 13 for the PC, PS4, and XB1.
This new trailer highlights the graphical improvements between the original console releases of BioShock, BioShock 2 and BioShock Infinite, and the upcoming BioShock series debut on PlayStation 4 and Xbox One. 2K is bringing all three entries in the much loved BioShock series to PS4 and Xbox One for the first time, with 1080p graphics and up to 60FPS, and the Remastered Comparison Trailer also showcases examples of new and improved textures and art assets created by Blind Squirrel Games.

The second video is a Directory Commentary series, which can actually be unlocked in the game.
Also, today is the release of the teaser trailer for Episode One of "Imagining BioShock", the Director Commentary series which can be unlocked by finding Golden Reels hidden throughout Rapture in the remastered version of the first BioShock. By collecting these Golden Reels, fans can watch nearly two hours of director's commentary, featuring Ken Levine, creative director on BioShock and BioShock Infinite and Shawn Robertson, animation lead on BioShock and animation director on BioShock Infinite.

The first two videos will be released on the 2K YouTube channel. The first of which is (obviously) seen above.