Watch Batman: The Long Halloween, Part Two (2021) HD Full Movie Free on SolarMovie. Watch Batman: The Long Halloween, Part Two (2021) online free. The killer known as Holiday continues to stalk the Falcone crime family while a new class of costume...The killer known as Holiday continues to stalk the Falcone crime family while a new class of costumed criminal rises in Gotham City. Batman suspects that a former ally might be the serial killer.