This is the 11354th most frequent German word.
spannender
"More exciting" or "more thrilling."
Here, 'spannender' is used in the comparative form to describe that the current book is more captivating or thrilling compared to the other mentioned book.
Das Buch, das ich lese, ist spannender als das letzte.
The book I'm reading is more exciting than the last one.
In this context, 'spannender' is employed in a figurative sense to convey that the view is unexpectedly engaging and marvelous.
Die Aussicht von diesem Berggipfel ist spannender als erwartet.
The view from this mountain peak is more exciting than expected.
Here, 'spannender' is utilized in its base adjectival form to define the noun 'Film' as having captivating qualities.