These are not the fast-paced trailers with overlaid music and/or narration that Hollywood puts out. Instead, these cliptrailers use a few partial scenes from the movie to convey the feel of the edit without spoiling the main plot points (even if the trailer may seem like a big spoiler to someone who hadn't watched it).

Obviously since edits may be significantly different in flavor from the original, some of these may seem much different from the vibe of the original show or movie.