Memorial Day weekend is upon us, and for most that means beach, sun and water sports. For us, however, that means big summer movies are officially here. Whether accurate or not, Hollywood views box office totals from this weekend to predict how the summer will go like Punxsutawney, Penn., uses a groundhog's shadow to forecast winter's end.

This doesn't always hold up. Despite last year's Memorial Day box office haul being the lowest in 17 years, Hollywood still had one of its most profitable summers ever. The following five movies will tell you one thing about what type of movies do well over Memorial Day: huge action-adventure sequels.

Opening this weekend, 'The Hangover: Part II' and 'Kung Fu Panda 2,' have the "huge" and "sequel" parts down. But they'll be trying to break into the list as the only raunchy comedy and animated film in the top five. Can they do it? Read the breakdown and decide.
The Lost World: Jurassic Park Movie Poster
The Lost World: Jurassic Park
Based on 18 critics

John Hammond (Richard Attenborough) summons chaos theorist Ian Malcolm (Jeff Goldblum) to his home with... Read More

The Day After Tomorrow Movie Poster
The Day After Tomorrow
Based on 38 critics

After climatologist Jack Hall (Dennis Quaid) is largely ignored by U.N. officials when presenting his... Read More

X-Men: The Last Stand Movie Poster
X-Men: The Last Stand
Based on 38 critics

The discovery of a cure for mutations leads to a turning point for Mutants (Hugh Jackman, Halle Berry,... Read More

Indiana Jones and the Kingdom of the Crystal Skull Movie Poster
Indiana Jones and the Kingdom of the Crystal Skull
Based on 40 critics

It's the height of the Cold War, and famous archaeologist Indiana Jones (Harrison Ford), returning from... Read More