Multiple Australian outlets report that a trailer for Christopher Nolan’s 2016 film “Interstellar” is being circulated. The short promotional material features the film’s lead actor, Matthew McConaughey. Across the sources provided, the coverage is brief and focuses on the existence of the trailer and its association with Nolan’s upcoming release at the time. No additional plot details, release dates, production information, or technical specifics are included in the excerpts supplied. The reporting presented is consistent: each outlet identifies the same film title, same director, and same main cast member connected to the trailer. Taken together, the articles indicate that the trailer is the main development being communicated to readers, with attention on Nolan’s authorship and McConaughey’s starring role.