I wonder about including violent war film (4,6)
I believe the answer is:
rear window
'film' is the definition.
(I've seen this before)
'i wonder about including violent war' is the wordplay.
'about' indicates anagramming the letters.
'including' indicates putting letters inside.
'violent' indicates an anagram.
'i'+'wonder'='iwonder'
'iwonder' is an anagram of 'reindow'.
'war' is an anagram of 'arw'.
'reindow' placed around 'arw' is 'REAR WINDOW'.
(Other definitions for rear window that I've seen before include "Hitchcock film set in one room" , "Old film" , "picture" .)