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Direction would be a compulsory component of the degree
or you can say: MA in Theatre and Film Studies
MA in Theatre and Screen Studies
or even MA In Theatre Studies (Direction) if this was the main component/foucs of the course

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This is the Ozzie version, so all depends where the translated document will be used.

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إخراج

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The Arabic text you cited uses the word ماجسـتير. In English, that could mean either Master of Arts or Master of Science. In theater arts, both kinds are offered by universities, in some cases by the same university. For example, look at the Theater Arts page on the website of Portland State University:

http://www.theaterarts.pdx.edu/academics_graduate.php

You will see that this university offers both degree programs. If you are not sure, you can use the generic expression "Master's Degree." This is commonly used as well, as in this page on the University of Oregon website:

http://comm.uoregon.edu/newsreleases/latest/may98/P050698_2....

The theater field is known by many names, but since the Arabic degree name uses الفنون المسرحية, you'd better stick to "Theater Arts" (or "Theatre Arts" if the translation is for New Zealand).