How to connect a dell inspiron to a samsung TV?

How can I Connect a Dell inspiron 1545 to a samsung TV that has no computer port on the back just a HD MI port and a scart port. I want to watch the films from my lap top on my TV but I need help doing this. Also the lap top does not have a HD MI port on it just USB and the 15 pin port which I think is for connecting to a monitor.How to connect a dell inspiron to a samsung TV?http://www.google.co.uk/#sclient=psy%26amp;hl=鈥?/a>

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