In the second part of our Summer Movie Preview, we get to some of the year's bigger and riskiest bows: A big-future epic from Disney, an action-comedy, a disaster-movie all-you-can-eat platter of CGI destruction and the return of a long-gone director to the silver screen with a star-studded cast in a beautiful location. But which will be worth it and which will be worthless?  Our notes are below, and if you're looking for the first part of our Summer Preview, it's right here with our thoughts on Avengers: Age of Ultron, Hot Pursuit, Mad Max: Fury Road and Pitch Perfect 2 ...

Tomorrowland -- May 22

If there's an doubt that there's a serious disconnect between how we make movies and how we market them, pause for a moment to note that director Brad Bird has been asking, via twitter, that people not watch the latest trailers for his film Tomorrowland. Well, when the man who made The Iron Giant asks you to do something, you do it -- so I don't know much more about this film than the pitch, which sees a young girl (Britt Robertson) caught up in some dimension- or timeline-hopping conspiracy that takes her to the never-was title locale to decipher its mysteries alongside George Clooney.  Disney, of course, feels the need to explain and elaborate, but 'From the writer-director of The Iron Giant, The Incredibles and Mission Impossible: Ghost Protocol' is really all I need.

San Andreas -- May 29

A hard film to figure out, if only because traditionally, Dwayne 'The Rock" Johnson is pitted against enemies he can punch in the face, and the San Andreas Fault, while the source of earthquakes, lacks one.

Figure on lots of CGI destruction erotica as Johnson's emergency rescue worker tries to get random civilians and specific loved ones out of harm's way during a colossal earthquake, with Paul Giamatti's expository geologist as the slice of cheese on top of Johnson's action-heroics burger. Johnson's reuniting with his Journey: 2 director Brad Peyton, but it's kind of hard to get too excited about Johnson in a movie like this where all the things that make him special -- charm, wit -- are going to take a backseat to CGI and running and jumping.

Aloha -- May 29

Cameron Crowe comes back, after the fumble of Elizabethtown -- but is this latest round of travel, romance and self-discovery going to return him to his glory days, or just seem like more of the same? With a sterling cast -- Bradley Cooper, Emma Stone, Rachel McAdams, Bill Murray, John Krasinski and more -- Aloha is sure to pull discriminating ticket-buyers into the multiplex, but it's still going to look like one of Summer's more mixed propositions until reviews are in.

Spy -- June 5

Paul Feig and Melissa McCarthy's previous collaboration, The Heat, was a broad, funny comedy that incorporated fights and chases alongside yuks and punchlines. Here, Feig switches genres and locations but keeps much the same as McCarthy's now a CIA desk jockey put into the field alongside Jude Law, Jason Statham and Rose Byrne out of  necessity when everyone else in the agency gets their cover blown. (Any similarity to the plot of the Get Smart reboot is, uh, inevitable? Unfortunate?) All the early word out of a super-advanced screening at SXSW was amazingly favorable, and while this looks like another simple case of 'Lady fall down' comedy in the trailers, the early buzz suggests it's McCarthy's best, smartest and strongest film to date.