Possible Clues:

• Fail to be moved, finding means of salvation
• If able to swim, it can save you at sea
• English stole to steal houses -- some craft!
• It provides a bit of help, essentially, at sea
• Month over in end after capsizing sea vessel
• Float I made to burst and be capsized aboard rescue craft
• It saves doctor a bit of leg, eradicating the onset of gangrene
• 1944 Hitchcock movie in which his picture is shown in a newspaper on board
• Fellow investing in oil with a bet devised commercial rescue
• Hitchcock survival film