Sinking Ship Set - Movie Madness - Diggy's Adventure

Here's some timestamps and guide to help you better:

1:55 - Found dressing room 5 key
Room 5 has key to 1, 1 has key to 2, 2 has key to 3, 3 has key to 4, 4 has key to 6
Props are only in room 6 and 1, so if you're saving energy, no need to open the others
4:43 - VHS Videotape part
5:44 - Treasure part 4
The key is in the most top-right locker
7:10 - Treasure part 5
8:54 - Fixing pipelines 1
9:53 - Fixing pipelines 2
11:26 - Fixing pipelines 3