The two phrases are substantially different. "Out of control" refers to a condition where the ability to influence or steer has been lost for some reason. "Beyond control" means the ability to influence or steer is not possible.

Out of control and Beyond control have very subtle differences like Jeff said. Out of control means things are beginning to get bad and one should try to do something about it. Beyond control means things have gone 'beyond' the ability of control and thus is out of your hands. Hope I helped and have a good weekend :)

Thanks so much for the detailed examples, and they are really helpful to me Jeff. Hope you all the best!

To me there is a subtle differenc in the two expressions. When something is "beyond control", it means that some constraint (technical, legal, etc.) prevents you from controling it. In other words, you do not have the "power" or "authority" to control it. For example the weather is beyond our control. But this does not mean the weather is bad, it could be sunny and beautiful but still "beyond our control". On the other hand, when something is "out of control", to me there is an unspoken implication that things have gone amuck. For example, a rebellious teenager who does what ever he/she wants (smoking, drinking, staying out all night) and refuses to give in to his/her parents authority, might be said to be "out of control". Hope this helps!