Even the very best movies are more a collision of skill, chance and good luck than anything else, and neither the best intentions nor the strongest abilities are ever perfect indicators of how a film will turn out.
With even the smallest Hollywood film being comprised of a mind-boggling number of moving parts, then, it's little surprise that things can get bumpy once budgets hit the eight-figure region, dozens of production departments have to be co-ordinated and A-list egos come into play.
Film sets are professional work-places as much as anywhere else - or so conventional wisdom says - yet the highly-strung, ultra-stressful nature of filmmaking often brings out the worst (and the weirdest) in actors and filmmakers alike.
When performers are called to work on physically and/or mentally demanding scenes, tensions can run high - sometimes it's nobody's fault, but often it's exactly a result of either a prima donna actor or a dictatorial director.
Regardless of who was truly to blame, these scenes made it in the can after hours or even days of on-set adversity, where the tension could be cut with a knife and the focal figures truly suffered for their "art"...
Stay at home dad who spends as much time teaching his kids the merits of Martin Scorsese as possible (against the missus' wishes).
General video game, TV and film nut. Occasional sports fan. Full time loon.