head to head
Neither is simply harder - they are hard in different places. Portal 2 demands more execution; The Movies demands more variance.

Optimization · Pure Optimization
A first-person puzzle game where seeing the solution is the whole skill.

Optimization · Pure Optimization
A studio-management economy puzzle dressed up as Hollywood moviemaking.
Portal 2 leans Optimization (Pure Optimization); The Movies leans Optimization (Pure Optimization).
Portal 2 leans clearly harder on execution.
Portal 2
Portal placement requires some precision but timing is lenient.
The Movies
Menu and drag management, no dexterity test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Portal 2
No opponent; puzzles are static.
The Movies
No adaptive rival studios to outwit
The Movies leans clearly harder on variance.
Portal 2
Puzzles are deterministic with no randomness.
The Movies
Star moods and script rolls add light randomness
Portal 2 leans a little harder on optimization, though the gap is small.
Portal 2
Solving the puzzle's logic IS the entire game.
The Movies
Studio economy, staffing and timing are the solvable core
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.