Brothers of the Head

The twins are played by 19-year-old real-life brothers Luke and Harry Treadaway. They're sexy, touching and macabre, and you can't keep your eyes off them.

Despite the odd moment of visual bravura, this mockumentary is too aware of its own satirical daring. Consequently, it's never as dark, dangerous or amusing as it thinks.

The credible feel of this film-within-the-film remains an achievement; it's neither mocking nor parodic and nearly always deadly serious.

"Lost In La Mancha" directors Louis Pepe and Keith Fulton take a flailing mockumentary shot at a convoluted narrative about a pair of conjoined twins-turned-punk-rock-duo.