Is the fifth part of Yan series filmed? Or is there a fifth one?

Yan's second film Falcon 1949 was shot in 2008~2009.

Yan's third film, The Flying Tiger, was shot on 20 10~20 1 1.

Yan's fourth film, Eagle on the Island, was shot on 20 1 1.

Yan's fifth film, Desert Gun God, is currently being filmed in Dunhuang.