Like their fellow tweenie sensation Hannah Montana, the Jonas Brothers are the perfect stars to get the three-dimensional treatment – their sworn chastity making them at once safe and unattainable to little girls. In this movie of a Jonas Brothers concert at Madison Square Garden last August, drumsticks and guitar picks are tossed into the audience, the brothers gym-flip across the stage, and crucially, there are close-ups of their faces. Aaaargh!

Which brings us to screaming – not from the movie itself, but the shrieking that’s guaranteed to be taking place in movie theatres filled with young girls going gaga at the merest hint of a 3-D Jonas chest. Besides the concert footage, JB 3D is scattered with ‘real life’ scenes and Help!-style vignettes (running down the street chased by girls, playing songs on the grass in Central Park). And in case you were wondering how the boys let off steam post-gig, the answer is obvious – shake up bottles of champagne and spray it all over everyone.