Asian film titles in battle (10)
I believe the answer is:
vietnamese
'asian' is the definition.
(I know that Vietnamese is a type of asian)
'film titles in battle' is the wordplay.
'film' becomes 'ET' (E.T. the Extra-Terrestrial).
'titles' becomes 'names' (I've seen this in another clue).
'in' means one lot of letters goes inside another.
'battle' becomes 'vie'.
'et'+'names'='etnames'
'etnames' put into 'vie' is 'VIETNAMESE'.
(Other definitions for vietnamese that I've seen before include "oriental language" , "Asians" , "Natives of Hanoi" , "Asian language" , "People" .)