The crown prince of Saudi Arabia arrived in Paris on Sunday, a day ahead of his first official visit to France, which is hoping to profit from his shake-up of the conservative kingdom to forge a new kind of commercial relationship.
Macron's role in helping mediate in the Lebanese leadership crisis, which led Hariri to travel to Paris and then rescind his resignation, was seen by analysts as exposing the limits of Prince Mohammed's authority.
The agreement calls for the creation of a dedicated agency modelled on the lines of the French museums agency, which spearheaded the setting up of the Louvre museum in Abu Dhabi.
Earlier on Monday, Hariri tweeted another selfie with the prince and Moroccan King Mohammed VI, showing the three leaders smiling and dressed casually.
Saudi Arabia was France's second-biggest client for both arms deliveries and new arms orders in 2016, according to official data.
The prince´s visit follows a period of underlying tensions with France, not least with regards to Iran.
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The prince has used his global tour to project his reforms - including the historic lifting of a ban on women driving, cinemas and mixed-gender concerts - as part of his pledge to return the kingdom to moderate Islam.
Lawyer Joseph Breham, representing a Yemeni human rights group, is suing the crown prince, now in France on an official visit, for his leading role in the Saudi-led coalition's airstrikes fighting Iran-backed Houthi rebels in Yemen.
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"With a rich tradition of storytelling, Saudi Arabia is embarking on the development of a sustainable and dynamic (film) industry", Culture Minister Awwad Alawwad said in a statement sent to AFP on Monday. "We have here a young leader who is going to be in the highest functions in a country where 70 percent of the population is under 30", Macron said alongside the 32-year-old prince.
"I can not think of a better partner for culture and art than France", Saudi Culture Minister Awwad Alawwad told AFP.
Macron, 40, has walked a diplomatic tightrope in talks with the reformist prince as he seeks to bolster ties with the world's top crude exporter, while also managing relations with the kingdom's arch-nemesis Iran.
Macron said the two countries had tactical differences on how to deal with the Iran nuclear deal, but they agreed on the need to curb Tehran's regional expansionism, and France refused to accept its ballistic attacks on Saudi Arabia.