claim: Half Girlfriend's principal photography began in June of 2016.
evidence: Harry A. Marmer -LRB- June 21 , 1885 -- November 5 , 1953 -RRB- was a Ukrainian-born American engineer , mathematician and oceanographer who was a career employee of the United States Coast and Geodetic Survey .. United States. United States. United States Coast and Geodetic Survey. United States Coast and Geodetic Survey. He was an internationally recognized expert on tides and currents .. currents. Ocean current