In recent years, it has been a widespread habit for many films to start filming without having a fully bound script. Back in the day, this was the standard, therefore it is perplexing why it has persisted for so long. There have been numerous occasions when films have failed miserably only because of a plot that was not bound. Consider the recently released film Agent, which stars akhil Akkineni. The movie was marketed as a spy thriller, and the plot definitely fit that description as well.
But after the movie was released, people questioned the absence of the spy elements. Anil Sunkara, the producer of Agent, also expressed his thoughts on the subject. We began filming without a bound screenplay, and this is entirely our fault, he claimed. You may read more about the difficulties Agent encountered in his subsequent comments here.
Now, the same errors are being made in mahesh babu and Trivikram's SMMB 28. Originally, they had picked an action movie, but for a variety of reasons, they switched to a different genre. Due to the lengthy delay in the shoot, the team decided to film for the first half. The second half of the movie has still not been finished after several days. However, trivikram has consistently done this with many of his films and has also produced blockbusters. So, the outcome of SSMB 28 remains to be seen.