Hey,
If I actually open Folder.jpg for say the film Elizabeth starring Cate Blanchett (actors name are along the top of the artwork for this one), all the text is fine. However in Theater View the covert is stretching horizontally so it shows as starring Clate Lanchett, whoever she is.
So it's clipping some pixels on both the left and right.
Samples attached. Folder.jpg is the original. Folder1.jpg is how it looks in Theater View.