The most recent trailer for Pet Sematary is very effective but if you walk away wondering, why would Paramount spoil those plot details, I can certainly understand that reaction. That's precisely why I asked directors Dennis Widmyer and Kevin Kölsch about the marketing campaign during our interview at SXSW where Pet Sematary celebrated its world premiere. As you'll see in this brief transcript, I think there's a case to be made for both going into the movie completely unaware of a certain plot point but also for jumping into this Pet Sematary adaptation knowing that it'…