1.Adsense and google analytic code have this error -Whoops, looks like something went wrong - when insert in box from admin panel.
2.Search box have a bad look to desktop pc ,when find movie in the search box on preload it is very thin so that nothing is seen in the image movie.
3.Section in welcome page Show TV Airing Today not show very well maybe must fix the long title for movie..
4.Sitemap and feed is not present that is very important for indexing.
5.Translation for plot movie in another language like Roumain in most new films it is not present i think you must fiind replaceable solutions, in case it cannot be translated from tmdb.
6.Option translate it is present just for movie and show Tv not for Menu - Page - Category - Genere - Admin Panel etc.
7.The SMDB is not Seo-Ready ,that is very important the link it is like *site.com/4716263/movie*
8.Suport from seller it is very slow i think it is normal to have an answer after 2 days, in which you are asked for the password and the data for the server and then to wait another 2 days to receive an answer.
The password on the server cannot be exposed to mail for more than several hours, it will have to be changed for security reasons.
I like your php script but there are a few above that I don't like.
This is my honest opinion.