I won't spoil the trailer further for you, but it's worth watching on a number of levels and actually is the best to date if you ask me. It's interesting to watch the marketing unfold for this movie as it is vastly different than the others - something Marvel excels at doing.
Here's the movie's storyline:
The next evolution of the Marvel Cinematic Universe brings a founding member of The Avengers to the big screen for the first time with Marvel Studios’ ANT-MAN. Armed with the astonishing ability to shrink in scale but increase in strength, master thief Scott Lang must embrace his inner-hero and help his mentor, Dr. Hank Pym, protect the secret behind his spectacular Ant-Man suit from a new generation of towering threats. Against seemingly insurmountable obstacles, Pym and Lang must plan and pull off a heist that will save the world.
Directed by Peyton Reed and produced by Kevin Feige, Marvel’s ANT-MAN stars Paul Rudd as Scott Lang aka Ant-Man, Evangeline Lilly as Hope Van Dyne, Corey Stoll as Darren Cross aka Yellowjacket, Bobby Cannavale as Paxton, Michael Peña as Luis, Judy Greer as Maggie, Tip “Ti” Harris as Dave, David Dastmalchian as Kurt, Wood Harris as Gale, Jordi Mollà as Castillo and Michael Douglas as Hank Pym.
ANT-MAN opens on July 17.