In the Dead of Night

Yes!!! That's right! Plz continue

Next, a feature film? ?
   

don't remember that, just from impulse I am going to say Hollywood Monsters

That's a good try but not the game.

Mummies make me think of Day of the Tentacle, but I don't think it could be that.. :/

No, it's not DOTT, but this may spark a memory:
   

I'm stumped.. The Filmmaker?

I haven't played it but a quick search told me that The Riddle of Master Lu is set in Egypt and on Easter Island...

 mysterious one. I thought of filmmaker too, riddle of master lu is interesting never thought of that. I think it's from 1995-2000 . I'll say Discworld Noir