BANGKOK — Thailand’s anti-corruption watchdog has ruled against the former governor of the Thai Tourism Authority on charges relating to the running of the Bangkok Film Festival.Juthamas Siriwan and her daughter, Jittsopa Siriwan, are accused of taking bribes of $1.8 million from Los Angeles film producer Gerald Green and his wife, Patricia, in return for passing on contracts to host the annual fest and other tourism events between 2002 and 2007. The National Anti-Corruption Commission found the Siriwans had committed criminal offenses and will now forward the cases to the prosecution. Both have been indicted in the U.S. for allegedly accepting bribes from the Greens, although the U.S. has yet to request extradition. The Greens were found guilty of money laundering and violating the Foreign Corrupt Practices Act in August 2010 in the U.S., and sentenced to six months in jail and six months of home detention. The case is seen as a test of the reach of the act.