Without any additional context, this sheet was included in the middle of Romero's production. We don't know where it came from, but it's a wryly humorous (and depressingly accurate!) summary of Romero's experiences in the film industry.  The Six Phases of Film Production

1. Wild enthusiasm
2. Disillusionment
3. Panic
4. Search for the guilty
5. Punishment of the innocent
6. Reward of the non-involved

It's little known that Night of the Living Dead was not actually Romero's first feature film. The first was a mostly-lost anthology film from the early 1960s called Expostulations. According to Romero, it was fully shot and edited but it was shot silent - as was customary for low-budget independent filmmaking at the time - and the company hired to create and record the soundtrack went out of business.

In 1986, George began what would have been an epic, two-part adaptation of H.G. Wells' foundational science fiction novel War of the Worlds. He completed a draft of the first part, "The Night They Came," which covered an on-the-ground account of humanity's attempts to survive the initial alien invasion.