There have been some excellent posts regarding demo reels. I posted the following as a comment but, as a published author on reels, and an editor in the heart of Hollywood, these few tips may be helpful: A reel is created to convince agents, casting directors and producers that you are the best person for the part. A reel has no other function. Casting directors these days will tell you a minute is the maximum they are likely to watch. Your agents will tell you to post individual clips on Actors Access and other sites so that they can discuss your performance with casting while they are watching the clip that best represents the role you have been submitted for. Therefore it is counter-productive to put dissolves or other effects between clips other than "dips to black or white." This allows you to quickly and cheaply reshuffle your reel for a specific purpose, pull out a scene that is not relevant for this submission, essentially revise your reel ad-infinitum. There are actors, who are at the level of series regular or starring roles whose reels need to be longer since producers will want to see the scope of their abilities, but even they will be asked to submit individual clips more often than not. I have two young stars, that are in this category and I will post their 5 minute reels. Tips: (Almost) no-one should be on your reel but you, When in doubt throw it out. Casting wants to see your performance, they are not interested in story. Don't repeat a character or situation. If you have two tirade scenes, choose the best one. In fact don't repeat anything. Eliminate all extraneous footage, no coming through doors, running across fields, walking down long hallways with your back to the camera any thing that does not promote you as the star. If the star of the series boosts your performance with a comment or throws focus to you, this is okay. Use whatever makes you look good. Bad video quality reduces the effectiveness of your performance. Enhance, color correct, brighten if you need to. All work on your reel should be as current as possible. If you were famous for a scene shot 20 years ago and must use it. Restore the video technically. If you don't love your reel, you won't promote it as religiously as you should. I've never seen anything, reel, trailer or feature film, that didn't benefit from being shorter. But then, I am an editor.