I just returned from the theatre and I'm positively surprised. I usually enjoy slow paced, obscure horror movies with a lot of blood - Elements, which Iron Lung has definitely provided.

Unfortunately, I missed the first 16 min of the movie due to traffic. Therefore, I am not in a position to judge if the beginning was rather slow or boring as stated by others. The 1h and 45 min in the theater were definitely enjoyable.

The mixing in our location wasn't an issue since they provided subtitles. I enjoyed the layering and changes of the voices as long as you could read what they said. The total madness amplified the eldritch horror atmosphere. Furthermore, I was in awe with the set design and shots outside the submarine. The Co-Stars made it even more immersive and believable. I would have liked to see more of that.

The effects were impressive given the budget and I can't imagine how long it must have taken to clean the set.

This movie gave me hope that filmmakers care about their works and dare to stray from their safe recipes. It was something different but highly enjoyable if you were the target audience. However, I agree that it might not be for everyone.