Action movies tend to be appealing, or maybe appealing movies often have action in them. You can see it with films that try to reach as big an audience as possible, with something like Titanic, though not an action movie, certainly having spectacle and set pieces alongside the love story to make it more than “just” a romance film. Though, as a romance film, it’s also great.
It’s a weird movie to single out, maybe, but it was also one of the most successful of all time, so that’s worth something. As for other movies that wanted to be crowd-pleasers, or broadly appealing, but did belong to the action genre more definitively, they're outlined below. They're not necessarily the best blockbusters of all time, nor the all-time greatest action movies, but they do feel like they might well be some of the easiest to enjoy and/or get engrossed in.