Does the Elizabeth leader bonus in Civ5 also apply to embarked units?
I can confirm that embarked land units do get an extra two movements under Elizabeth's special ability.
I just tested it in two saved games, one with Elizabeth and one with Augustus. An embarked land unit in the Elizabeth saved game had six moves, but Augustus' unit only had four. Both had Astronomy (+1 embarked movement, embarked units can move over ocean) and Steam Power (+1 embarked movement).