.

Also question is, when was Shutter Island set?

1954,

who produced Shutter Island? Martin Scorsese Mike Medavoy Brad Fischer Arnold Messer

Also to know is, is Shutter Island based on a true story?

Dennis Lehane, who wrote the novel the film is based upon, has said the island is based on a real place he visited as a child, a minimum security prison located in Boston Harbor. This Shutter Island feels more Photoshopped than real, although Scorsese's intent is clear.

How did Shutter Island end?

The ending of Shutter Island Teddy is refusing to accept the fact that he killed his wife after she murdered their children and has become delusional and violent. The role-play was the last effort to force him to accept his crimes or he would be lobotomised.