Marvel has released feature-film-style trailers to promote their Civil War mini-series. They're pretty entertaining. From the site:
Civil War #1 is less than one week away. You will need to decide: whose side are you on? Are you ready? Marvel wants to make sure you have all of the facts and have been exposed to all of the events leading up to this monumental event. Check out this video prequel that catches everyone up on the events of the last two years. Events that have haunted the heroes. Events that have turned the tide of public opinion. Events that have rocked the Marvel Universe to its core, leaving it vulnerableâ€¦ to war!