LOL, that Terminator poster has a logo for DTS, a digital theatre sound technology that emerged nine years (1993) after the film's 1984 debut.
Sure, you can use digital movie posters to create a good ambience for your mancave, home theatre, whatever. Nothing wrong with that.
I could load up on rock concert poster replicas. However, the only ones I have are the ones from The Fillmore (San Francisco) that are handed out to attendees at the end of the show. The colors change, they undergo damage, etc. BUT I WAS THERE.