'50 Shades of Grey' Trailer -- Preview Doesn't Play Rough Enough

The ridiculously anticipated "50 Shades of Grey" trailer finally came out, and some fans are losing their minds over leading man Jamie Dornan ... claiming he comes up short in one key department.

The ladies (and one guy) here at TMZ just don't see the, umm ... tie-me-down-chain-me-up-and-whip-the-hell-out-of-me-with-cat-o-nine-tails appeal they're seeking in a man.

Most of us are trying not to judge them for that.