If you loved Doctor Who: Planet of the Dead, try Codename: Kids Next Door: Operation Z.E.R.O.
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
You already loved

Doctor Who: Planet of the Dead
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Codename: Kids Next Door: Operation Z.E.R.O.
What they share
Theyboth carry the playful mood tag, and they sit in Fantasy / Mystery / Science Fiction / TV Movie territory. If that's the register that drew you to Doctor Who: Planet of the Dead, the second film will land in a comparable space — through a different lens.
playful
What Codename: Kids Next Door: Operation Z.E.R.O. is
Abandoned treehouse on a stormy night a old radio crackles. Villains unite to resurrect Grandfather. A dark comedy from the early 2000s Cartoon Network era.