Four Lions tells the story of a group of British jihadists who push  their abstract dreams of glory to the breaking point. As the wheels fly  off, and their competing ideologies clash, what emerges is an  emotionally engaging (and entirely plausible) farce. In a storm of  razor-sharp verbal jousting and large-scale set pieces, Four Lions is a  comic tour de force; it shows that-while terrorism is about ideology-it  can also be about idiots.

