Richard Linklater has always been one of cinema’s greatest risk takers, from his living painting Waking Life, to the flawless Before Sunrise trilogy, the Texas-born director has spent his career furthering what’s possible in the medium. Now comes Boyhood, his most mind-boggling experiment to date. Get this: in 2002 Linklater cast six year old Ellar Coltrane (who yesterday won the award for best name in history) in the what was to be the ultimate coming-of-age tale. Over the next 12 years, Linklater periodically reunited with Coltrane and the actors who play his parents—Patricia Arquette and Ethan Hawke—to shoot the story of this boy’s early life as it unfolded in what feels like real time. The movie has wowed audiences at festivals, and when you watch the trailer below, you’ll probably see why. Boyhood opens on July 11.