¿Qué significa that movie wasn't as touch as when I was young. ?

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@Seouler100
No, your sentence isn't awful. You used the 'as~as' pattern correctly.

The word "touch" is unnatural, so I was trying to get some context to understand what word you were trying to say.

There are two words that are possibilities.
"touching"
"tough"

I think you mean the word "touching", which means "touches your emotions", like it makes you feel happy, sad, excited, nostalgic, or adventurous, etc.

So, the sentence would look like his:
That movie wasn't as touching as when I was young.

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The second possibility is "tough".
Tough means "strong". Like if you think a guy who is fighting in the movie is really strong and tough. Maybe they seemed stronger to you when you were a kid because you were weaker than them then, but now you are an adult and they seem weaker than you, so they don't seem tough anymore. And that makes their fight scenes not seem as impressive to watch.