Song to SongAh, to be in love and make sweet music together — what could be better?

The trailer for Terence Malick's "Song to Song" starts out blissful and sweet, as indie rockers Ryan Gosling and Rooney Mara float through Austin, Texas, falling in love and playing music. Things get complicated by the arrival of music mogul Michael Fassbender and his waitress paramour Natalie Portman. It seems triangles and quadrangles ensue.

"We thought we could just roll and tumble. Live from song to song, kiss to kiss," Mara says. If only love were that easy.Malick filmed the movie during the 2012 Austin City Limits Festival, and word is that the Red Hot Chili Peppers and Iggy Pop make appearances. Also rumored for cameos are Arcade Fire, Florence & the Machine and Iron & Wine, as well as actors including Christian Bale and Cate Blanchett. But with Malick's notorious reputation for brutal editing, you really never know what might end up in the final cut.

"Song to Song" debuts at SXSW on March 10, and then in limited release March 17.

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