One thing's clear - all mainstream Muslims believe that it's forbidden to worship images, idols, icons. That's why Islam would never have anything akin to the Christian cross. Any visual portrayal of the prophet Mohamed is also forbidden - that's why in Anthony Quinn's famous 1976 film, The Message, the prophet's face is never shown.

Although many Muslims has praised the film for its positive portrayal of Islam, others have nevertheless condemned it as blasphemy. As Salman Rushdie found out to his misfortunate, some Muslim clerics can be rather picky about what constitutes blasphemy.