The phrase "a release from confinement" is correct and usable in written English.
It can be used in contexts discussing freedom from imprisonment or restrictions.
Example: "After serving his sentence, he was granted a release from confinement and was finally able to return to his family."
Alternatives: "freedom from imprisonment" or "liberation from custody".
The performance known as "Metamorphosis" -- in which Houdini began the act bound and tied inside a box, then magically exchanged places with his female assistant, who ended up bound and tied in the same box -- could be viewed as a man's miraculous release from confinement and the corresponding capture of a woman.
Although almost no one is calling for Mr. Mubarak's release from confinement or for a restoration of his government, many long for order.
In a letter written in 1996, after her first release from confinement, Suu Kyi asked, How many can be said to be leading normal lives in a country where there are such deep divisions of heart and mind, where there is neither freedom nor security?
Another metaphoric collocation involving the descriptive element of venting (e.g. he vented his embarrassment/anger/frustration by…) underlies the negative character of these emotions and the process which leads to decreased power and weakening of the Experiencer, letting metaphorical air (anger) escape or release from confinement and, similarly to a tyre, making it flat (devoid of tension power).
The G.I. already had more prison time than that to his credit, so the force of the general's ruling was to bring about Rafe's immediate release from confinement.
It also makes the commissioner of health responsible to try to notify a victim when a perpetrator is released from confinement.
When Aung San Suu Kyi was last released from confinement, she was given a choice: walk away from Burma after years of confinement to reunite with her family and enjoy her freedom or stay and fight for democracy.
Hellbent on revenge, when the doctor is released from confinement the narrator escapes to go after him, opening again a sort of chase on which the book shifts through a wide array of strange locales.
