I searched around the admin control panel (several pages of buttons, the majority of which I dare not monkey with) but did not find anything that specified which types of attachments are allowed. Perhaps gpathy will be able to set us straight; he's the custodian with the brains. I'm the one with the broom and a bucket of sawdust.
If all else fails, I'm sure you can link to it if it resides somewhere else on the web.
Yeah, I could link to it, but I normally use flickr which has a nudity prohibition, and this particular movie has virtual nudity. I dread having to look for new places to post quicktime movies, as they will all be puritanical.