Mark Gil and Bing Pimentel met on the set of 'Batch '81.' Bing, who was introduced in the movie, was supposed to be guarded by her brother-in-law who was also part of the production staff; her brother-in-law was supposed to be her 'chaperone.' Apparently, the chaperone didn't do a good job because Mark and Bing became a couple and they had a son. Their son Timmy decided to become an actor and used Sid Lucero as his screen name. Sid Lucero is actually the name of Mark's character in 'Batch '81.'
The depiction of fraternity in the movie, like the hazing, was taken from different experiences. Some were from actual hazing done by frats. Others like yung pinapatuluan ng kandila was from the Decolores (a Christian movement), lying prostrate on the ground – it's from the ritual where the priest takes his final vows.
'Batch '81' was supposed to open people's eyes to what a fraternity is, the negative and the positive. The positive side is that the fraternity can actually nurture the brightest minds. All in all, the fraternity molds its members to become the best. The negative side is the violence. Sad to say, there are still neophytes who die from hazing. No one's really learned – or perhaps they didn't watch 'Batch '81.'
'Batch '81' spawned a cult following. It has left a mark on today's independent filmmakers, from Quark Henares to Lav Diaz. It's one of the movies that many of them cite to this day. It's also a regular feature or film studied by broadcast students.