The ornamental design for a portablecinemacase, as shown and described.
FIG. 1 is a front perspective a portable cinema case.
FIG. 2 is a rear perspective view of the portable cinema case of FIG. 1.
FIG. 3 is a front view of the portable cinema case of FIG. 1.
FIG. 4 is a rear view of the portable cinema case of FIG. 1.
FIG. 5 is a top view of the portable cinema case of FIG. 1. No bottom view is shown, as no claim is made to the design of the bottom of the portable cinema case.
FIG. 6 is a left side view of the portable cinema case of FIG. 1; and,
FIG. 7 is a right side view of the portable cinema case of FIG. 1.
The broken lines illustrate portions of the portable cinema case that form no part of the claimed design.