So here are some thoughts on your short script.
I do prefer sci fi things and this one hit the mark for me.
I thought the main character 'the mad scientist' was a little stereotypical, and thought yeah maybe if you really did want it to look and feel that bonkers then it wouldn't matter but I thought you could go past the expected.
Regarding the inventions and the one that predicts, I like this. I do however think it might be better if we saw some of his crazy constructing, through different images or times during the week he's working on them. Just a series of shots would suffice and work well.
Page 2, is where you mention ‘looks like he hasn’t moved for a week. In film you can’t tell the reader this, we have to see it.
I also think that it could be clearer in dialogue or action what the ‘cube’ is saying or doing. I wasn’t sure if it had said ‘crap’ or that was something Phillip was just speaking.
And he won the lotto, lol. Nice, but would have liked a tad bit more build up to that. It just didn’t seem as dramatic as it could have been. With a little bit more character development it would be. Maybe the guys kid is sick in hospital or with him in a wheel chair, anything to give that lotto win a little more kick to us readers.
Of course just my humble thoughts, it wasn’t bad though got a small chuckle out of me.
This mad scientist was actually for a competition based on a mad scientist. So thanks for spotting that.
As for the page 2 bit, I thought the part about the invention gathering more parts would suffice, in that, when filmed, the audience would see a bigger and better invention, that is the only thing to change. And due to the invention getting larger, it would be obvious when seen that a period of time has elapsed. A week can't be seen obviously, but an assumption of days or a week can be guessed.
Regarding the Cube, I thought the action part that stated 'one word fills the screen' followed by Philip's one word sentence would be an obvious surmise.
This script was limited to a five page rule. It was longer which I had to shorten to fit. Maybe your idea or something similar is something I'll look into.
It's hard to create random inventions and give small concise descriptions. I would have liked to have added more, just couldn't think of any.
Cheers for the read.