Well... I'd say yes and no. The brilliance of The Godfather is it acknowledges, in a rather lurid way, how such a lifestyle could appear attractive, especially in the morally disturbing way it asks the viewer to admire the Corleone's sense of loyalty and family. But obviously the film isn't holding these lifestyles up as an example to follow, and you'd have to be an idiot to think that. Just because a film doesn't feel a need to do moral heavy lifting doesn't mean the viewer can't extrapolate from the evidence presented the obvious consequences of organised crime. This is particularly true of the second Godfather film, in which the argument that Michael's actions are for the good of his family is less convincing. Nor are we meant to be convinced. The second film is about power and corruption, and what that does to the human soul. It's a deep, profound, truthful work, with frankly biblical clarity on the wages of sin (look at how it isolates Michael). As such, I'd recommend every Christian watch it.