2003 - Dir. Clark Johnson
Context: Based on the 1970's television series of the same name, this film is about an elite Special Weapons and Tactics team in Los Angeles. Jim Street (Colin Farrell) has just been kicked off the S.W.A.T. team following a hostage situation in which he and his partner disobeyed direct orders. His demotion has him working in the "gun cage" with Gus (James DuMont), who apparently really likes Dr. Pepper and McDonald's, but seems a little confused about the tenets of his religion, and the actual dietary restrictions contained in the Word of Wisdom...
Exegesis: This video contains clips from two scenes in the film. In the first scene, Gus is drinking a Dr. Pepper, and confesses to Jim that he really shouldn't, since he converted to Mormonism when he got married. Fair enough – many Mormons avoid caffeinated drinks, despite their not being specifically proscribed by the Word of Wisdom. (Note: The Word of Wisdom is what the Mormon law of health is called, and is the reason why Mormons don't smoke or drink alcohol, tea, or coffee among other things.) So that's all fine. Getting into a discussion of whether caffeinated soft drinks are against the Word of Wisdom (or the spirit of the Word of Wisdom) is likely to be fruitless, since the Church hasn't ever made an official statement on the subject. Furious debates on this subject can be found elsewhere on the Internet, and a treatment of it here would be beyond the scope of this exegesis. Suffice it to say, many Mormons avoid it, and this scene rings more or less true. (For the record, I am one of those Mormons who doesn't drink caffeinated soft drinks, which is maybe why I let this scene slide.)
The second scene, however, is completely bizarre. I understand that McDonald's food is unhealthy, but to suggest that it is typical of Mormons to avoid it is strange indeed. Avoiding fast food may be a good idea, but it's certainly not a tenet of the Mormon faith. Weird.
It's difficult to understand why these scenes are included, except as some misguided attempt at comic relief. In the first scene, it's so that Colin Ferrell's character can make the remark about treating his body "like an amusement park," and in the second scene, so that Colin Farrell's character can tell Gus he's "cheating on [his] wife with fast food," something that sounds absurd, but in the context of the scene and Gus' bizarro Hollywood version of Mormonism, makes sense. Because he's Mormon, the movie seems to suggest, the worst sin he can commit is cheating on his wife by eating McDonald's. Instead of smelling like another woman's perfume, or even cigarette smoke, he will smell of french fries, a tell-tale sign of "infidelity" that Gus has already found a solution for: mouthwash. The joke appears to be: Look at these clean living Mormons - they're so peculiar, and the Mormon corollary to real-world problems/transgressions are trivial and silly! It is the quintessential "Mormons as 'other'" paradigm. It would help if the example (McDonald's) made any sense at all in the context of Mormonism, but whatever. Incidentally, I'd love to see what would happen if the Church outlawed fast food. Yikes.
There are other characters in other movies who happen to be Mormon for reasons that don't further the narrative, and sometimes don't even prop up weak humour, as in this example. I think there are simply screenwriters out there who either knew a Mormon once, or just have a book called: "The Writer's Bucket O' Quirks for Well-rounded Secondary Characters." Giving a minor or otherwise poorly-sketched character some random religious quirks is a quick way to flesh that character out without doing much heavy-lifting screenwriting-wise.