Please help me find clips of silents that involve romance, kissing, etc.

I'm going to start working on an unofficial music video and my idea involves using clips of silent films that either show people kissing or romantically interacting in some way.

I will start looking for good clips soon, but I was wondering if you guys had any suggestions? Preferably they would be shorter clips available online, because I will have to download them from youtube or whatever and edit them down.

Thanks.

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