ah, well spotted!
what's happening here is that the INPUTs (seeds) you are giving to the taste profiler are being put into a recommendation call which is finding similar (recommended) items to fill in the display. The problem is that there are, of course, going to be off-genre references e.g. mary poppins (musical) might have some link to toy story because of the disney connection (and the fact they are both great movies) hence toy story could appear when mary poppins is entered as a seed.
i cant get toy story to appear (its based on whatevery YOU rated as your preference) but i got harry potter as a musical (!?) so at least i can reproduce the symptoms :)
the solution is, i think, pretty simple, which is to restrict (filter) the outputs to be in the same genre as the inputs. I'll look at it tomorrow.