It's impossible to answer this question (and here's my... er, answer, explaining why!)
To understand why, we need to understand what cryonics is. Alcor is a life extension foundation who are involved in cryonics. On their own website, they have a frequently asked questions section, with the following information:
Q: What is cryonics?
A: Cryonics (from Greek kryos meaning icy cold) is the low-temperature
preservation of humans who can no longer be sustained by contemporary
medicine, in the expectation they can be healed and resuscitated in
the future using more advanced medical technologies. Cryopreservation
of people is not reversible with current technology, and is today only
practiced following legal death. The rationale for cryonics is that
current medical and legal definitions of death are inaccurate and that
cryopreserved patients who do not meet the more stringent
information-theoretic definition of death retain sufficient
biological/neurological structure to be restored to full physical and
mental health using advanced future technologies. See About Cryonics.
Q: Has anyone ever been revived?
A: No adult human has ever been revived from temperatures far below
freezing. Cryonics patients are cared for in the expectation that
future technology, especially molecular nanotechnology, will be
available to reverse damage associated with the cryonics process.
Q: Aren’t cryonics patients dead?
A: A person who can be resuscitated is not dead. Therefore if cryonics
patients are preserved well enough that they might someday be
resuscitated, then they aren’t dead: they are cryopreserved.
Before cryonics procedures can begin under present law, a patient must
be legally dead.
I've highlighted some key pieces of information that show two very important facts:
- No one has ever been revived from a cryonic state, as the technology isn't advanced enough yet to do this.
- For any patient to be cryopreserved, they must be declared "legally dead".
In your question, you ask: Are there any (realistic) movies about cryopreservation?
The problem here is obvious: as there's never been a successful revival of a preserved patient, we have no idea what a realistic revival would actually look like.
Of course, there are plenty of films that have attempted to show cryonics. Iceman showed a prehistoric man who had been frozen in ice naturally and was revived. Aliens, Avatar, 2001: A Space Odyssey and Interstellar all showed it being used to traverse great distances in space (which is the most common reason it is shown). Demolition Man shows freezing being used as a form of penitentiary. From a more light hearted point of view, Futurama shows the lead character unwittingly become frozen, waking up thousands of years later.
But it's impossible to comment on how realistic any of these depictions are, because we simply don't have advanced enough technology to actually know what a realistic revival would look like.
Based on edit of question, I'll argue no, there are no films that have shown this. There are some documentaries that have shown revival of frozen bodies and even made it a fairly "major" theme, such as the upcoming Cry drama @cde has mentioned in the comments.
But as far as I'm aware, all of the bodies are only legally dead, not actually dead. If a body was dead, it's dead. We cannot revive the brain. A futuristic movie could depict such a thing, but it's hard to argue this is realistic as once the brain is dead, it's dead.