SAN FRANCISCO (KRON) — Francis Ford Coppola’s recent financial troubles have been well-documented. The legendary director and filmmaker self-financed his most recent picture, the $120-million sci-fi flop, “Megalopolis.”

The box office bomb, which only made about $14 million, reportedly left the Oscar-winning director virtually broke. Last month, the San Francisco Chronicle reported that the director would be auctioning off his million-dollar watch collection to “keep the ship afloat.”

Now, the director is reportedly putting another one of his assets on the line. According to a report in The Real Deal, Coppola is putting up North Beach’s iconic Sentinel Building, which he has owned since 1973, as collateral for a loan.

Coppola purchased the seven-story Edwardian-era building at the corner of Columbus Avenue and Kearny Street following the success of his breakthrough film, “The Godfather,” in 1972. The tile and copper-clad building, which survived the 1906 Earthquake, was designated as a historic landmark in 1970.

For decades, it’s been home to Café Zoetrope on the ground floor, with Coppola’s production company, American Zoetrope occupying the officers above.

The Real Deal, citing documents filed with the San Francisco assessor, is reporting that one of the director’s companies, Francis Ford Coppola Presents, has taken out a loan with Capital Holdings VI LLC and offered the building as a guarantee. The loan amount is undisclosed, according to the report.

This is also apparently not the first time the director has used the building as collateral. According to The Real Deal, Coppola has used the building to guarantee a loan twice before, once in the 1980s, and again in 1998.

This is also not the first time Coppola has found himself up the river with financial troubles from self-financing a film. Coppola’s 1979 Vietnam War epic, “Apocalypse Now,” also drove the filmmaker into debt.

The $31 million film eventually went on to gross $150 million.