There is significant word play in the film, some of it based on the "pineapple bun".

Many well known favorites are the egg tarts and the pineapple buns.

By the way, "pineapple buns" have no pineapple in them.

Although it is known as "pineapple bun", the traditional version contains no pineapple.

Melonpan and pineapple bun from Hong Kong are very similar.

Most bakeries carry standard fare such as pineapple buns and egg tarts.

I also had a scrumptious red bean and pineapple bun (80 cents) that was a nice topper to the meal.

McDull, the prince of the pineapple bun with butter), was shown in cinemas in Hong Kong.

By the evening they won’t be anything like as good,” Pang explained as we nibbled on pineapple buns, named for their shape rather than any pineapple content.

In June 2014, the Hong Kong Government listed the pineapple bun as a part of Hong Kong's intangible cultural heritage.

A pineapple bun is a kind of sweet bun predominantly popular in Hong Kong and Macau, though they are also common in Chinatowns worldwide.

Hong Kong-style Chinese pastries are carried by most bakeries in Hong Kong, like egg tarts, pineapple buns, wife cake, jin deui and cream bun.

In 2005, "pineapple bun" was nominated as the name of a typhoon, but was rejected because the director of the Hong Kong Observatory stated that news reports concerning the typhoon would sound nonsensical.

The top of the pineapple bun (the part which is made to resemble a pineapple) is made of a dough similar to that used to make sugar cookies, which consists of sugar, eggs, flour, and lard.

In September 2014, a police raid found that several suppliers (including Starbucks, 7-Eleven and Cafe Express) had been selling pineapple buns made with tainted oil, known as "gutter oil", from an unlicensed factory in Taiwan.

Tai Tung Bakery in Yuen Long, which had been making pineapple buns for more than 70 years, was a key proponent of including the technique for making the buns on the list of 480 items of living heritage.

Many Hong Kong restaurants, such as cha chaan tengs and dai pai dongs, offer an item called a buttered pineapple bun, which is a pineapple bun with a piece of butter stuffed inside.

In an interview with the South China Morning Post he said that while overseeing sequences for the Gingerbread Man character in Shrek, he daydreamed about animating a character from a Hong Kong bakery, a Pineapple Bun Man.