Katie Featherston and Micah Sloat in Paranormal ActivityPARANORMAL ACTIVITY

It's not often that you witness an image in a horror movie (or in any movie, really) that you instinctively recognize as iconic. The last one I can think of in the scare-flick genre would probably be Heather Donahue in The Blair Witch Project, with her wool cap, her nose running, and her mouth out of camera range as she videotapes a final, tearful apology. (Seeing that shot for the first time in 1999, you knew it was one that would endure - and be parodied ad nauseam.) But we now have a new addition to the Iconic Image Hall of Fame thanks to Paranormal Activity, which, like Blair Witch, was filmed on a shoestring budget, and which features a shot, like that of Donahue, that will no doubt be instantly identifiable for generations of horror-movie fans.

Anna Maria Perez de Tagle, Cody Longo, Paul Iacono, Kay Panabaker, and Asher Brook in FameFAME

Not long into Kevin Tancharoen's remake of Fame, there's a brief sequence that completely underscores the difficulty - if not impossibility - of successfully updating Alan Parker's R-rated musical drama from 1980 for young audiences in 2009.

Ben Stiller in Night at the Museum: Battle of the SmithsonianNIGHT AT THE MUSEUM: BATTLE OF THE SMITHSONIAN

Night at the Museum: Battle of the Smithsonian is to its precursor what Ghostbusters II is to Ghostbusters: the less-novel offering, sure, but a follow-up of surprising wit and great throwaway touches, and one that, in many ways, improves on source material that was pretty terrific to begin with. Despite its titular locale, no one is going to mistake director Shawn Levy's adventure comedy for a work of art, yet when this follow-up is really working - which is surprisingly often - it provides a giddy, giggly rush, and it's filled with comic bits that you could probably watch three or four times in succession and laugh at every single time. The movie is scrappy, silly, and a load of fun.