The text at the top of the poster reads, ‘Combattre Le Mal Par Le Mal’ which means ‘Fighting evil with evil’.
Wikipedia gives more info on the man himself: Solomon Kane was created by the pulp-era writer Robert E. Howard. A 16th century Puritan, Solomon Kane is a somber-looking man who wanders the world with no apparent goal other than to vanquish evil in all its forms. His adventures, published mostly in the pulp magazine Weird Tales, often take him from Europe to the jungles of Africa and back.
We can expect to see it on our screens, 5th February 2010.