The recently released remake of 1982 Arnold Schwarzenegger action epic Conan the Barbarian, sees jaw-droppingly buff Jason Momoa brilliantly recreate his predecessor's prowess.

And Hollywood brawn doesn't stop just there.

This summer's other superhero action flicks Thor and Captain America also star muscle-bound hunks.

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These three films are just the latest in a long line of action flicks which have seen top actors undergoing gruelling gym sessions to bulk up for roles.