Yes :)
Chat with our AI personalities
No, however it is necessary that you cite the source if you copied it. Ensure that you provide the necessary copyright information in the description of the video.
You can watch all of the scenes to that movie on youtube.
The best place to find movie fight scenes on-line will probably be Youtube or Daily Motion as these sites often have montages of fight scenes specifically put together to save searching for lots of individual films.
The 10 minute limit YouTube places on its users is because before this limit was in place, users were able to upload unauthorised content - such as whole movies - which went against the sites terms and conditions. However, it is possible to upload longer videos if you are a YouTube partner.
Anything that's not copyrighted, pornographic, or offensive. In fact, I think the best type of movie to upload to Youtube is the kind that it was made for: video blogs. Or, if you have any talents you want to share with others, you can film yourself doing it and then upload that. Just try to make something that hasn't been done before.