Yes you are allowed to upload them for your website. However, it needs to be 100% legal and hence you must be sure that you aren't breaching any copyright laws by uploading them to your website.
(Edit) If you got the movies from tv, then it is not legal to reproduce them on your website and thus not allowed.
If you use a song in your movie but give recanition to the writer is that ok?
I'm sorry to create some confusion as I must have overlooked the tv part. As others said, such files are not legal in most (if not all) cases and hence are not allowed.
What about me? Can i put music in my movies? The artist is reconized.