After doing a little searching, it appears that she is the brig Phoenix, built in 1929, used in several movies lately and in the "Hornblower" series. She may be for sale (or at least was last year) for 525k pounds.
Interesting. This ship was built in 1929 (five years after my mother was born), and yet appears to be so ancient! I kind of wonder why such a ship was built as late as 1929.