Thelma & Louise? Maybe, or a video about motorway (4,5)
I believe the answer is:
road movie
'thelma louise?' is the definition.
I know nothing about this answer so I can't judge whether this works.
'maybe or a video about motorway' is the wordplay.
'maybe' indicates an anagram.
'about' is an insertion indicator.
'motorway' becomes 'M' (as in motorway names - M1, M4 etc).
'or'+'a'+'video'='oravideo'
'oravideo' anagrammed gives 'roadovie'.
'roadovie' placed around 'm' is 'ROAD MOVIE'.
Can you help me to learn more?
(Other definitions for road movie that I've seen before include "Type of film" , "type of flick" .)