This is a relatively tame horror movie despite its R rating, but the sheer number of BIG NAMES in it made it a must-see for me when I was in high school. I think I've seen it maybe once since then. Luckily for us all, it's free to stream for Prime members on Amazon. Woohoo! And it's fairly cheap to purchase, too.
Here's the synopsis:
Are you afraid to die? Kiefer Sutherland isn't. He's an ambitious, charismatic medical student who persuades classmates Julia Roberts and Kevin Bacon to take part in a reckless experiment. To see if there is life after death, they will kill themselves: temporarily shut down ("flatline") their heart and brain functions to briefly experience clinical death. After Sutherland survives the first experiment, the others flatline for increasingly longer intervals. But their horror begins when they realize that although they've come back alive... they haven't come back alone. Flatliners is a chilling suspense thriller of obsession, fear and redemption that will take you across the line to a place where terror lives forever.
Oh, and while researching the whole Six Degrees thing I found this little gem on Wikipedia:
According to the Oracle of Bacon website approximately 12% of all actors cannot be linked to Bacon using its criteria (ie. cannot be linked to Bacon no matter how many steps)Those poor souls...