In spite of being married to some of the most gorgeous people in the world, not all Hollywood marriages have the perfect fairytale ending. A case in point is the recent split between actors Antonio Banderas and Melanie Griffith who were married for 18 years.

While working in an industry filled with glitz, it is easy for some celebrities to stray from their significant other. Quite often, in the time actors spend shooting on the set, romance ignites between two co-stars.