Connections

This is the movie that the two main characters try to see but which is sold out (identifiable from the poster outside the cinema)

Poster visible in Diana's apartment.

Seen on a drive-in poster

Mentioned by Svengoolie; images shown.

Mentioned by Andrew O'Keefe as a possible answer to a question about the movie in which Elvis Presley plays characters Jodie Tatum and Josh Morgan asked when Xavier and the Chaser go head to head.