Here's one that's guaranteed to put a big smile on your face: 'The Sapphires' trailer, which tells the very unusual true story of a quartet of Aboriginal singers who, during the late-'60s, became unlikely entertainers for American troops in Vietnam.

The film, which came out last summer in its native Australia and played in numerous festivals, lands in the states next month and stars hot commodity Chris O'Dowd ('Bridesmaids', HBO's 'Girls') as the manager of the group. As the first trailer suggested, 'The Sapphires' definitely seems to have some cross-over hit potential, so you'll want to get on the bandwagon early. (It also carries a very healthy 93% "fresh" rating on Rotten Tomatoes at the moment.)

Here's the official synopsis:

The Sapphires is an inspirational tale set in the heady days of the late ‘60s about a quartet of young, talented singers from a remote Aboriginal mission, discovered and guided by a kind-hearted, soul-loving manager. Plucked from obscurity, the four spirited women with powerhouse voices - called The Sapphires - are given the opportunity to entertain American troops in Vietnam. Catapulted onto the world stage as Australia's answer to the Supremes, their journey of discovery offers them not only the chance to show off their musical skills, but find love and togetherness, experience loss and grow as women.

Directed by Wayne Blair and also starring Jessica Mauboy, Deborah Mailman, Shari Sebbbens and Miranda Tapsell, 'The Sapphires' opens on March 22nd.