The following paragraph is a review on "Ocean's 8". What is the meaning of "caper" in this context?
"The website's critical consensus reads, "Ocean's 8 isn't quite as smooth as its predecessors, but still has enough cast chemistry and flair to enjoyably lift the price of a ticket from filmgoers up for an undemanding caper."
According to Cambridge Dictionary, "caper" means 1. an illegal, unusual, or entertaining activity. 2. a small, dark green flower bud that is used as an ingredient to give a slightly sour taste to food.
However, it seems "caper" in this context means something else. Thank you.