song in inglourious basterds

Inglourious basterds is postmodern because it has intertextuality in it such as the songs as there is elements of there being spaghetti western songs as shown below:




here is the song in a spaghetti western:



this song that is in inglourious basterds seems out of place and this is a postmodern thing to do as it tells the audience how clever and origional the director is