Arnold Schwarzenegger in Terminator GenisysTERMINATOR GENISYS

Following some requisite, necessary backstory, Terminator Genisys opens in 2029 Los Angeles, where resistance leader John Connor (Jason Clarke) transports fellow revolutionary Kyle Reese (Jai Courtney) to 1984, where he's to hopefully prevent global apocalypse and protect John's mother Sarah (Emilia Clarke) from a murderous robot (Arnold Schwarzenegger). Upon arriving, however, Kyle finds that Sarah doesn't need saving and the robot isn't murderous, so off they go to 2017, where the planet is still imperiled, and John Connor himself proves to be the source of the planet's eventual ruin. After one of these whisks through the decades, Kyle says, "Time travel makes my head hurt," and time-travel movies generally make my head hurt, too. But for a fifth installment in an increasingly confounding series, this particular time-travel movie is actually a fair bit of fun.

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.

In a colon-happy summer that's already given us X2: X-Men United, Dumb & Dumberer: When Harry Met Lloyd, and Charlie's Angels: Full Throttle, this past week saw the debut of three more excessively wordy titles: Terminator 3: Rise of the Machines, Legally Blonde 2: Red, White, & Blonde, and Sinbad: Legend of the Seven Seas. While these longer monikers are, admittedly, kinda helpful - they give you a good idea of what to expect from the Terminator and Legally Blonde sequels, and the Sinbad subheading assures you that, no, it's not a concert film featuring the one-time Star Search champion - they can play hell on print reviewers with limited space. So, for purposes of this article, the aforementioned will hereby be referred to as T3, LB2, and ... oh, I guess Sinbad will do.