In his written eulogy, Ebrahim Hatamikia expressed deep sorrow and disbelief at Nasrallah's martyrdom.
He reflected on Nasrallah's significance, saying, "It's hard to imagine Lebanon without you."
The director of many award-winning films, such as 'Glass Agency' and 'Bodyguard', wrote that he recalled waiting to meet Nasrallah in Lebanon but never having the chance.
"I was pretending to be a hero in a story when I heard that Seyyed Hassan Nasrallah had died," he noted, using metaphorical language.
In a reference to film directing, he wrote, "The sound and camera may be off, but your movement will continue to al-Quds."
The Resistance Movement said in a statement on Saturday that its Secretary General was martyred in Israel's strikes.
Hezbollah also reiterated its commitment to persist in its struggle against the adversary, assist in the besieged Gaza Strip and the occupied Palestinian territories, and safeguard Lebanon.
The Resistance group offered condolences to Iran's Leader of the Islamic Revolution, Ayatollah Seyyed Ali Khamenei, and the Resistance combatants.
In a message of condolences, Iran's Leader declared five days of national mourning over the martyrdom of Nasrallah.