Celebrity Cruises has won its appeal of a personal injury lawsuit where a passenger tumbled and hit her head on the edge of a stage on the Celebrity Infinity.

Maritime law requires cruise lines to exercise "a duty of reasonable care" towards passengers but need not warn them of " open and obvious" dangers, the US Court of Appeals for the 11th Circuit said in an unpublished decision.

Jonathan Heller, a lawyer representing Krug, and Darren Friedman, Celebrity's lawyer, did not immediately return calls seeking comment.