When an American bushwalker falls into an unexplored gorge, he must help his three companions escape a ravenous arachnid humanoid to survive.
No they climb down to help him and later blame him for getting them stuck. This is a ‘monster in the house film’ like Alien or Predator. I feel you can keep the tension up by keeping up the conflict between the characters. I might need to add a couple of words to this e.g. ‘Tasmanian’ gorge. I want the main character to be a complete outsider to his companions and environment.
I’m pretty familiar with Deliverance and John Boorman but that’s not the tone I’m after, although it is very similar. This is a straight up monster movie, the MAIN action is to survive the monster, to not get eaten. How would you write the logline for Deliverance in 25 words or less? Their Main action is survival.
“american” has no place here (read my review of your australian theme park theme).
I understand you are trying to explore the M.I.T.H. genre but I recommend you to read again the blake snyder chapter about genres. You have to find a new way to combine the formula. Bushwalker, already seen too. Giant insect, already seen. Wild natural setting, already seen. You should struggle to find at least 1 element that bring something ‘new’ to the formula. Or a new combinationo f some old elements. But the most difficult is to build a logic in the whole concept. It’s not about ” a libanese cook must escape from the AmazonTM warehouse before robot Hitler kills everybody”: I’ve never seen this before but it’s plain s**t.
Come on! I’m sure you can write a killer logline.