Emile, finding scripts online is pretty straightforward.

Google: “title screenplay pdf”

There are quite literally dozens of sites which host screenplays online.

Note: None of them are legal, but that doesn’t seem to be a problem with the online screenwriting community. The links I provide are legal in the sense that studios and production companies willingly post those links. I take them down as the links disappear.

Anyhow, you may find some of the Stallone scripts online. Be advised: Many scripts are not available online.

Good luck!