I tried copying the movie on a flash disk instead and use USB-ON-THE-GO to play the movies on n8. It doesnt work either. If the file system of the flash disk is FAT32 also, you won't be able to copy files on it that is larger than 4gb. I tested changing the format to NTFS to allow file size larger than 4gb. Was able to successfully transfer the movie file onto the flash disk but if you connect it to N8, N8 will treat the disk as corrupted. I think only FAT32 is supported as of the moment.
I wasn't able to play a movie with file size between 2gb and 4gb. I don't have any available movies that meets the criteria. Most of the movies i have are less than 1.9gb or more than 4gb.