Trapped video!

So, I recorded about an hour and a half of footage in one take on my iPhone, which apparently created a rather huge video file; now, when I try to import it to my computer (via iPhoto), I am unable to do so. Has anyone had this problem, or does anyone know the cause? (file size restrictions in iPhoto?). More importantly, does anyone have a good idea of how I could possibly get the file off my phone?