Heat Signature (movie)

Heat Signature is a series of pre-war movies, which consists of at least three films. The film's tagline: "UNDER THE OCEAN NO ONE CAN HEAR YOU DIE" seems to suggest that it is a horror film or at least a thriller/suspense, though the actual genre is unknown. The film appears to be a fusion of horror and suspense, with the first film about a submarine crew who enter an area where they detect the enemies heat signature, but they are unable to find their own. In the episode "Heat Signature", after it shows that scene of the film, the camera then moves away Marceline's TV (the TV everyone is watching Heat Signature on) and to Finn and Jake. The movie's audio is lowered so viewers can hear Finn and Jake's dialouge, but in the background noise you can hear what seems to be people screaming and some kind of monster making noises like possibly roaring, snarling, growling, slashing, chewing, etc.

Heat Signature has been referenced in two episodes, "Video Makers" and "Heat Signature." In "Video Makers" the third film was set to appear as the movie during Finn and Jake Movie Club, but was canceled due to copyright warnings. In the same episode, Marceline seems to have prior knowledge of the movie, asking "Oh, with the submarine?" In "Heat Signature", which chronologically occurs before "Video Makers", Finn mentions how strange it is that Marceline is 1000 years old and has never seen it, both this and Marceline's previous comments seem to show that this movie was popular in its day. Finn also seems to like the movie quite a bit, stating that "it would blow their minds" in reference to Marceline and her friends who had not yet seen it.

Trivia

 * In the movie there are humans, only because it was made before the Mushroom War.
 * The tagline of the movie make a reference to the tagline from the movie Alien from 1979: "In space no one can hear you scream."
 * Heat Signature might have 3 or more parts to it because in Video Makers, Finn said they were going to watch Heat Signature 3.
 * In Video Makers, at the beginning of the movie "Heat Signature 3", the words "Document 413" apear on the screen, suggesting that the warning Finn and Jake read is not the normal warning that appears before a movie starts, but a message stating that it was classified information, and that the Heat Signature is not a movie at all but government security footage of real events that happened before or during the Mushroom War.