Apologies if this has been posted before but the BFI's amazing online archive of free films has this which may interest some people:
The launch of RMS "Celtic" at Harland & Wolff in 1901.
player.bfi.org.uk
Unfortunately I think this is only available to UK users at present.
The launch of RMS "Celtic" at Harland & Wolff in 1901.

Watch Launch of the "Celtic" - BFI Player
Seawards heads a great ship, the biggest of its day

Unfortunately I think this is only available to UK users at present.