Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Miscellaneous Techniques › How in the world… (Alexander battles) › a popular theatrical trick
a popular theatrical trick is to have the sword fold into itself- or retract into itself -sorta like this samurai sword:
as you stab your victim the blade is spring loaded and pushed up into the handle giving the impression it has gone into their chest.
a longer blade is likely made like an antennae where more than area retracts.
then they use CGI, add blood and guts to make it look like it went through to the guys back