St. Elmo's Fire is a 1985 American coming-of-age film co-written and directed by Joel Schumacher and starring Emilio Estevez, Rob Lowe, Andrew McCarthy, Demi Moore, Judd Nelson, Ally Sheedy, Andie MacDowell and Mare Winningham. From Wikipedia
Estevez recounts Schumacher's on-set behavior as a 'nightmare' and shares how the experience shaped his own directing approach, as Sony fast-tracks a sequel to the 1985 classic.