The 1950s Hollywood movie The Bridge on the River Kwai, about a Japanese POW camp during World War II, nearly contained a fascinating side story about a dedicated archaeologist prisoner. Hendrik Robert van Heekeren deserves the spotlight. — By Cyler Conrad In retrospect, I was probably far too young to be whistling that captivating tune of resistance from the Hollywood classic The Bridge on the River Kwai, but I was enthralled. The visuals, the history, the war: I remember feeling genuinely engrossed in the film, despite being a…