Boanerges,

Christians do indeed prove themselves bigots in the eyes of the homosexual community--and others--whenever they unscripturally externalize sin by acting as if God-ordained cultural activity (eating, drinking, working, learning, the arts, and the myriad expressions of "neighborly" life which are in themselves not manifestations of sin), in the company of the unredeemed, is intrinsically polluting.
More importantly, the Lord is dishonored by such an attitude:
Quote
9I wrote to you in my letter not to associate with sexually immoral people-- 10not at all meaning the sexually immoral of this world, or the greedy and swindlers, or idolaters, since then you would need to go out of the world. 11But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler--not even to eat with such a one. 12For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge? 13God judges those outside. "Purge the evil person from among you." (1 Cor 1:5)

Those who refuse to associate with an unbeliever in an activity not itself manifesting sin--as in this case, refusing to view the movie based on behavior never manifested or even hinted at in the movie--are in danger of violating this principle. To be consistent, they should also determine whether everyone with whom they associate--actor / boss / cashier / doctor / electrician / furniture salesman / gas station attendant / hairdresser / ISP / journalist / kids / librarian / mailman / neighbor / orthodontist / policeman / etc.--is guilty of any immorality before interacting with them.

We have now seen the movie, and I wholeheartedly recommend it. The missionaries are presented as both fully human and yet possessed of a Gospel-motivated, supernatural love. In a world prone to mock all things Christian, this movie goes far to demonstrate what the faith delivered to the saints can look like.

In Christ,
Paul S