First, under Islamic law, if a non-Muslim man marries a Muslim woman, he needs to convert to Islam—and if either parent of a child happens to be Muslim, the child will be Muslim.fn3 Second, becoming Muslim is irreversible, as apostasy is the heaviest crime under the religion, sanctioned by the death penalty. The famous Egyptian actor Omar Sharif, born Mikhael Demetri Shalhoub, came from a Lebanese Christian family. He converted to Islam to marry a famous Egyptian actress and had to change his name to an Arabic one. He later divorced, but did not revert to the faith of his ancestors.