There is a great new site called Movie Clips which provides legal access to a searchable database of movie clips. As of this writing, they have 12,000 clips available. The site allows sharing clips via a variety of social networking tools and and provides code to embed the clip into your own site.

The database is searchable, but it is also indexed by a variety of criteria. In addition to obvious categories like movie title and actor, the clips are also indexed by genre, occasion, mood and theme among others. One strange omission is production year. API access is available and the explanation shows that production year is part of the metadata, so I am not sure why this bit of information is not searchable.

And just because I can: