As you can see, there are several pictures out there of "the" iceberg - all with fair documentation, but none that are unquestionably "it". Every so often a new candidate emerges, but the three really good ones are before you.

The only video I know of about that covers when the iceberg actually hit the ship and what happened just after is in "Myths of the Titanic", which was available from Discovery.com last year, although it might not be anymore. If not, you sometimes can find copies on eBay - or watch for it in your tv listings - it's an excellent show.