The 'Don't Think Twice' Trailer Will Crack You Up And Break Your Heart

One of the summer's best movies is "Don't Think Twice," the story of a tight-knit New York improv troupe that must figure out how to move forward when one member is cast on a "Saturday Night Live" analog. Mike Birbiglia's directorial follow-up to "Sleepwalk with Me," the movie premiered at South by Southwest in March, where it won over audiences with rapid-fire laughter that evolves into a bittersweet look at navigating unexpected loss. 

The Huffington Post and its parent company, AOL, have the movie's exclusive first trailer. Birbiglia, Keegan-Michael Key, Gillian Jacobs, Chris Gethard, Tami Sagher and Kate Micucci star as the six-member troupe. "Don't Think Twice" opens July 22, following a 20-city bus tour that Birbiglia will do to promote the film.