Polite note to the marketing department at Universal studios: please take your Boyhood trailer and shove it where the sun don't shine. Burn it on a bonfire or bury it underground. There is no worse movie trailer than the Boyhood movie trailer.

Which is not to say that I dislike Boyhood. Quite the opposite: I love it to bits. Nor am I suggesting that your trailer isn't beautiful, because what else could it be? Richard Linklater's new film is purely ravishing, a painstaking coming-of-age drama that charts a Texas kid's journey from infancy to adulthood and was shot, at intervals, over a 12-year period, so that we see little Ellar Coltrane grow up on screen. Linklater's handling turns every time shift into a small epiphany. He conjures an airy, intense study of a life as it is lived and coaxes some gorgeous supporting performances from Ethan Hawke and Patricia Arquette.

Boyhood, in other words, is a film I can't recommend highly enough. But its magic works best when it is experienced at first hand; when the picture is allowed the space to move and breathe and reveal its treasures at leisure. Who needs the premature splurge of the official teaser trailer (even one as adept as this) when you can have the full 12-year love affair instead?

Ah well, never mind. You can't fight city hall or the Hollywood business model. Up above is an early taste of Richard Linklater's Boyhood, one of the finest films I've seen this year. If you opt to play it now, you've got a weekend treat in store. Alternatively, sit tight and hold out for the official UK release on July 11. And that way, no joke, you win the world in a bottle.